# Scientists Find Thousands of Organic Molecules Inside Ancient Meteorites

An episode of [Bedtime Astronomy](https://invisiblenetwork.ai/podcast/1736397134), 24 Sep 2026, 42 min.

Audio: https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/75219431/oeganicp.mp3

Researchers have uncovered tens of thousands of organic compounds inside the Murchison and Aguas Zarcas meteorites using the world’s highest-resolution mass spectrometer. Atomic force microscopy also revealed rare images of individual extraterrestrial molecules in remarkable detail. The findings suggest that the chemical ingredients needed for life were widespread across the early solar system—and that the primordial space environment was far more chemically diverse than scientists expected. Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs. This episode includes AI-generated content.

## Transcript

[0:03] Speaker 1: Welcome to Bedtime Astronomy. Explore the wonders of the cosmos
[0:07] Speaker 1: with our soothing Bedtime Astronomy podcast. Each episode offers a
[0:12] Speaker 1: gentle journey through the stars, planets, and beyond, perfect for
[0:16] Speaker 1: unwinding after a long day. Let's travel through the mysteries
[0:20] Speaker 1: of the universe as you drift off into a peaceful
[0:22] Speaker 1: slumber under the night sky.
[0:27] Speaker 2: I want you to start by just taking a second,
[0:28] Speaker 2: wherever you are right now, and imagining that you're holding
[0:31] Speaker 2: something in the palm of your hand.
[0:33] Speaker 3: Just a physical object.
[0:34] Speaker 2: Yeah, exactly. Feel the weight of it. It's a rock.
[0:38] Speaker 2: It's heavy. It's dense. It's dark.
[0:40] Speaker 3: Maybe a little charred, too.
[0:41] Speaker 2: Right, charred and pitted on the outside, almost like it's
[0:43] Speaker 2: been held to a grinding wheel or something. But it
[0:46] Speaker 2: looks pretty ordinary, honestly. Like a piece of asphalt you
[0:49] Speaker 2: might kick aside on a hike. Or maybe spot in
[0:52] Speaker 2: a gravel driveway.
[0:53] Speaker 3: Just a completely unassuming rock.
[0:55] Speaker 2: Totally unassuming. Yeah. But I want you to really focus
[0:58] Speaker 2: on this object in your mind's eye. Try to conceptualize
[1:03] Speaker 2: the sheer physical reality of it.
[1:05] Speaker 3: Because it's not asphalt.
[1:06] Speaker 2: No, it is not. Because the object you are holding
[1:10] Speaker 2: is a full billion years older than the planet Earth itself.
[1:13] Speaker 3: Wow. Yeah, that is hard to grasp.
[1:16] Speaker 2: It is. We are talking about something forged in the absolute, unfathomable,
[1:21] Speaker 2: deep time of the cosmos.
[1:23] Speaker 3: Right.
[1:23] Speaker 2: Something that existed before our sun even had a solar
[1:27] Speaker 2: system to shine on.
[1:28] Speaker 3: It's just wild to think about.
[1:29] Speaker 2: So today, we're looking at the primordial ingredients that literally
[1:34] Speaker 2: rained down on early Earth.
[1:36] Speaker 3: The raw materials.
[1:37] Speaker 2: The potential kickstarter for life, as we know it. Frozen
[1:40] Speaker 2: in stone, plummeting through the atmosphere, and waiting billions of
[1:44] Speaker 2: years to be understood. Okay, let's unpack this.
[1:47] Speaker 3: It is genuinely difficult to wrap your head around that
[1:49] Speaker 3: kind of timeline, isn't it?
[1:50] Speaker 2: Oh, absolutely. I mean, billions.
[1:52] Speaker 3: Right. When you hold a piece of a meteorite like
[1:55] Speaker 3: the ones we're exploring today, you are making physical contact
[1:58] Speaker 3: with the chemical foundations of the universe.
[2:00] Speaker 2: It's physical contact. You're holding history.
[2:03] Speaker 3: Exactly. What we are looking at is this incredible, almost
[2:07] Speaker 3: poetic synthesis of deep space astronomy and, well, cutting-edge microscopic chemistry.
[2:16] Speaker 2: Astronomy and chemistry coming together.
[2:17] Speaker 3: Yeah. It is the story of how the very building
[2:20] Speaker 3: blocks of life aren't just some freak... localized, earthbound phenomenon.
[2:25] Speaker 1: Right.
[2:25] Speaker 3: But they are instead deeply, fundamentally woven into the entire
[2:30] Speaker 3: fabric of the universe.
[2:31] Speaker 2: I really don't want to just rush past that timeline, though.
[2:33] Speaker 3: The age of the rocks.
[2:34] Speaker 2: Yeah, the 5.5 billion years. Let's just linger on the
[2:37] Speaker 2: sheer scale of that number for a minute.
[2:39] Speaker 3: It deserves it.
[2:39] Speaker 2: Because it's so easy to hear a number with the
[2:41] Speaker 2: word billion at the end of it and just gloss
[2:43] Speaker 2: over it.
[2:43] Speaker 3: Oh, definitely. Our brains aren't built for it. Right.
[2:46] Speaker 2: You hear billion and your brain just translates it to,
[2:49] Speaker 2: you know, a really long time ago and It's.
[2:51] Speaker 3: Just filed under really old.
[2:54] Speaker 2: Exactly. But consider this. Earth, the ground we are walking
[2:59] Speaker 2: on right now, the oceans, the mountains, everything that has
[3:03] Speaker 2: ever existed in the history of biology.
[3:05] Speaker 3: Let alone human history.
[3:07] Speaker 2: Yes. Human history is a blink. All of Earth's biology
[3:11] Speaker 2: is roughly four and a half billion years old.
[3:13] Speaker 3: 4.5.
[3:15] Speaker 2: And the rock we are talking about. had already been
[3:18] Speaker 2: drifting through the cold, silent vacuum of space for an
[3:22] Speaker 2: entire billion years before the Earth even bothered to accrete
[3:26] Speaker 2: from a cloud of dust.
[3:27] Speaker 3: Just floating there.
[3:28] Speaker 2: It's prehistory. It's literally pre-planet.
[3:30] Speaker 3: It completely reframes our perspective of time. And honestly, our
[3:33] Speaker 3: place in the grander scheme of things. Well, we usually
[3:37] Speaker 3: think of ancient history in terms of human civilization. Right.
[3:40] Speaker 3: A few thousands of years.
[3:42] Speaker 2: Right, like the Romans or whatever.
[3:43] Speaker 3: Exactly. We think of the pyramids or the first agricultural settlements.
[3:47] Speaker 3: Then we might push back to the dinosaurs.
[3:50] Speaker 2: Which is what? Hundreds of millions of years?
[3:52] Speaker 3: Tens or hundreds of millions, yeah.
[3:53] Speaker 2: Yeah.
[3:54] Speaker 3: And that feels unfathomably old to us.
[3:57] Speaker 2: Sure.
[3:58] Speaker 3: But billions. And specifically, a full billion years before the
[4:03] Speaker 3: Earth even existed.
[4:04] Speaker 2: Just void.
[4:05] Speaker 3: Well, not empty void. This material we were talking about
[4:08] Speaker 3: existed in the primordial solar nebula.
[4:10] Speaker 2: Okay, the solar nebula. What is that exactly?
[4:12] Speaker 3: That was the massive swirling cloud of dust and gas
[4:15] Speaker 3: that eventually collapsed under its own gravity to form our
[4:18] Speaker 3: entire solar system.
[4:20] Speaker 2: So it was just a giant chaotic cloud.
[4:22] Speaker 3: Very chaotic. This rock was there for the violent chaotic
[4:25] Speaker 3: birth of the sun. It witnessed the formation of the planets,
[4:28] Speaker 3: the massive collisions that shaped our early neighborhood.
[4:31] Speaker 2: Like it had a front row seat to the construction
[4:33] Speaker 2: of the solar system.
[4:34] Speaker 3: Basically, yeah. And then... It was cast out or left behind,
[4:38] Speaker 3: and it just floated in the deep freeze of space.
[4:41] Speaker 2: Just chilling.
[4:42] Speaker 3: Literally.
[4:42] Speaker 2: Literally freezing, acting as a perfect, undisturbed cosmic time capsule.
[4:47] Speaker 3: A cosmic time capsule, yes. And that brings us to
[4:50] Speaker 3: the actual physical objects at the center of this whole journey.
[4:54] Speaker 2: The meteorites.
[4:55] Speaker 3: Right. We aren't just speaking hypothetically here. We have two
[4:58] Speaker 3: specific time capsules to talk about.
[4:59] Speaker 2: Two very important rocks.
[5:01] Speaker 3: The first one is legendary in the scientific community. It's
[5:04] Speaker 3: called the Murchison meteorite.
[5:06] Speaker 2: Oh, Murchison is famous.
[5:08] Speaker 3: The story of how we got it is incredible. It
[5:11] Speaker 3: fell from the sky and crashed into a place called
[5:14] Speaker 3: Murchison in Victoria, Australia.
[5:16] Speaker 2: And this was back in 1969, right? Yep, 1969.
[5:19] Speaker 3: It was a massive event. People saw a bright fireball,
[5:22] Speaker 3: heard a sonic boom, and then pieces of this rock
[5:25] Speaker 3: just rained down on the town.
[5:27] Speaker 2: Just dropped right out of the sky.
[5:29] Speaker 3: Exactly. The specific fragment that we are analyzing today actually
[5:32] Speaker 3: comes from the collections at Chicago's Field Museum.
[5:35] Speaker 2: Which is fantastic.
[5:36] Speaker 3: So that's our 5.5 billion-year-old rock. But then we have
[5:41] Speaker 3: a second one to compare it to.
[5:42] Speaker 2: Right, the newer one. This one is called the Aguasarcus meteorite.
[5:46] Speaker 2: And it fell much, much more recently.
[5:48] Speaker 3: Very recently.
[5:50] Speaker 2: In 2019. It came crashing down in the rainforests of
[5:53] Speaker 2: Costa Rica.
[5:53] Speaker 3: I remember reading about that when it happened. Yeah.
[5:56] Speaker 2: In fact, a chunk of it went right through the
[5:57] Speaker 2: roof of a doghouse.
[5:59] Speaker 3: No way. A doghouse?
[6:00] Speaker 2: A doghouse. And the piece of that one was provided
[6:03] Speaker 2: by the Busick Center for Meteorite Studies and At Arizona
[6:06] Speaker 2: State University.
[6:07] Speaker 3: ASU has a great meteorite lab.
[6:09] Speaker 2: So we have these two rocks, one from 1969, one
[6:12] Speaker 2: from 2019.
[6:12] Speaker 3: Two rocks from the exact same overarching cosmic family called
[6:17] Speaker 3: Carbonaceous Chondrites.
[6:19] Speaker 2: Carbonaceous Chondrites.
[6:20] Speaker 3: Right, arriving on Earth exactly 50 years apart.
[6:23] Speaker 2: I have to stop you right there, though.
[6:25] Speaker 3: Oh.
[6:25] Speaker 2: Because this 50-year gap between 1969 and 2019, this is
[6:30] Speaker 2: where I start getting skeptical.
[6:31] Speaker 3: Okay, let's hear it.
[6:32] Speaker 2: If the Murchison meteorite landed in Australia in 1969, it
[6:36] Speaker 2: hit the dirt.
[6:37] Speaker 3: It did.
[6:38] Speaker 2: It hit a literal sheet paddock. Then people picked it
[6:40] Speaker 2: up with their bare hands. Then it got shipped across
[6:42] Speaker 2: the world, put in a museum, and it sat there
[6:45] Speaker 2: for 50 years.
[6:46] Speaker 3: Sitting in Chicago. Right.
[6:48] Speaker 2: Museums have dust. They have air conditioning. They have human
[6:51] Speaker 2: breath and microbes floating around everywhere.
[6:53] Speaker 3: They absolutely do.
[6:54] Speaker 2: So if we are looking for the delicate, microscopic, chemical
[6:58] Speaker 2: building blocks of lice in this rock... How on earth
[7:01] Speaker 2: do we know we aren't just measuring 50 years of
[7:04] Speaker 2: museum dust?
[7:05] Speaker 3: Or a sheeb, yeah.
[7:06] Speaker 2: Right. Or the bacteria from the Australian dirt it landed in.
[7:09] Speaker 2: How do we know it's actually space chemistry and not
[7:11] Speaker 2: just earth contamination?
[7:13] Speaker 3: That is the exact right question to ask. And it
[7:16] Speaker 3: is the very first thing scientists had to definitively prove
[7:19] Speaker 3: before they could proceed with any of this research.
[7:21] Speaker 2: Because if it's just dirt, the whole thing is ruined.
[7:24] Speaker 3: Exactly. It's the hurdle of contamination. But scientists have a brilliant,
[7:29] Speaker 3: foolproof way of telling whether an organic molecule came from
[7:32] Speaker 3: Earth or from deep space.
[7:34] Speaker 2: Oh, really? How?
[7:35] Speaker 3: It comes down to a concept called chirality, or handedness.
[7:39] Speaker 2: Handedness. Like being left-handed or right-handed.
[7:41] Speaker 3: Precisely in that sense. Many complex organic molecules, like amino acids,
[7:45] Speaker 3: can exist in two different mirror image shapes.
[7:48] Speaker 2: Mirror images? Okay.
[7:49] Speaker 3: Think of your hands. They have the exact same components.
[7:52] Speaker 3: Four fingers, one thumb.
[7:54] Speaker 1: Right.
[7:54] Speaker 3: But you cannot perfectly superimpose your left hand over your
[7:58] Speaker 3: right hand.
[7:59] Speaker 2: No, because they face opposite directions.
[8:01] Speaker 3: Exactly. They are mirror images. In chemistry, we call this
[8:05] Speaker 3: left-handed and right-handed molecular structure.
[8:08] Speaker 2: Okay, I follow you so far. Left and right molecules.
[8:11] Speaker 3: Now, here on Earth, biology is incredibly picky. Every single
[8:16] Speaker 3: living thing on this planet, from the bacteria in the
[8:19] Speaker 3: Australian dirt to the museum curator in Chicago, to you
[8:22] Speaker 3: and me.
[8:23] Speaker 2: Every living thing.
[8:24] Speaker 3: Every living thing. We all only use left-handed amino acids
[8:28] Speaker 3: to build proteins.
[8:29] Speaker 2: Wait, really? Just left-handed?
[8:30] Speaker 3: Just left-handed. Earth's biology is exclusively left-handed.
[8:34] Speaker 2: Okay, so if we look at the meteorite and find
[8:36] Speaker 2: left-handed molecules, it means a human touched it or dirt
[8:40] Speaker 2: got on it.
[8:41] Speaker 3: Exactly. It means it's an earth bug. But when scientists
[8:44] Speaker 3: look at the deep interior of the Murchison and Aguasarcus meteorites,
[8:48] Speaker 3: they don't see an exclusively left-handed profile.
[8:51] Speaker 2: What do they see?
[8:52] Speaker 3: They see a perfect 50-50 mixture of left-handed and right-handed molecules.
[8:56] Speaker 2: A perfect split.
[8:57] Speaker 3: It is what we call a racemic mixture. That 50-50
[9:01] Speaker 3: split simply does not happen in biology.
[9:04] Speaker 2: Because biology only makes left-handed ones.
[9:06] Speaker 3: Right. It only happens when complex chemistry is being forged
[9:11] Speaker 3: in a completely non-biological abiotic environment.
[9:15] Speaker 2: Like space.
[9:16] Speaker 3: Like the cold radiation of deep space. So the chirality proves,
[9:22] Speaker 3: without a shadow of a doubt, that these molecules were
[9:24] Speaker 3: made in the cosmos, not in a sheet paddock.
[9:28] Speaker 2: Wow. That is brilliant. Okay, so we know it's authentically
[9:32] Speaker 2: from space.
[9:32] Speaker 3: Yes, we do.
[9:33] Speaker 2: But that 50-year gap still matters.
[9:36] Speaker 3: It matters a lot, yeah.
[9:37] Speaker 2: Because I keep thinking of it like finding a sealed
[9:39] Speaker 2: time capsule from the 1960s. You pull it out of
[9:42] Speaker 2: the ground, you wipe the dirt off. But then you
[9:44] Speaker 2: realize you simply don't have the tools to actually open it.
[9:46] Speaker 3: You can't read the letters inside.
[9:48] Speaker 2: Right. You know it's important. You know it's old. You
[9:50] Speaker 2: even know it's authentic. But the lock is just too complex.
[9:53] Speaker 3: So you just have to wait.
[9:54] Speaker 2: You have to wait for half a century until someone
[9:56] Speaker 2: finally invents the right key.
[9:58] Speaker 3: The passage of those five decades is absolutely critical to
[10:01] Speaker 3: the science here.
[10:02] Speaker 2: Because technology changed.
[10:03] Speaker 3: Massively. When the Murchison meteorite fell in 1969, interestingly, the
[10:09] Speaker 3: exact same year humans first walked on the moon.
[10:12] Speaker 2: Oh, wow. 1969 was a big year for space.
[10:15] Speaker 3: It really was. Scientists knew it was a profound discovery
[10:18] Speaker 3: right away. In fact, Locals who found the fragments reported
[10:22] Speaker 3: that they smelled vaguely of alcohol or rotting garbage.
[10:25] Speaker 2: Wait, the space rock smelled like rotting garbage?
[10:27] Speaker 3: It did, in a manner of speaking, yes.
[10:29] Speaker 2: That is repulsive.
[10:30] Speaker 3: Well, it's the smell of volatile organic compounds. That smell
[10:34] Speaker 3: was literally the scent of extraterrestrial organic chemistry off-gassing into
[10:39] Speaker 3: the Earth's atmosphere.
[10:40] Speaker 2: The smell of space chemistry.
[10:41] Speaker 3: Exactly. So scientists did extensive analysis on it almost immediately.
[10:46] Speaker 3: But the scientific instrumentation available during the Apollo era, while
[10:49] Speaker 3: groundbreaking for its time, had severe limitations.
[10:52] Speaker 2: They just didn't have the microscopes for it.
[10:54] Speaker 3: Right. They could identify that carbon was present and they
[10:56] Speaker 3: could spot some basic amino acids. But they were essentially
[10:59] Speaker 3: looking at a wildly complex tapestry through a very blurry,
[11:04] Speaker 3: low-resolution lens.
[11:05] Speaker 2: Just getting the basic shapes.
[11:07] Speaker 3: They could only see the boldest outlines. Fast forward 50 years.
[11:11] Speaker 3: And the technological landscape has vastly, almost unimaginably improved.
[11:16] Speaker 2: Which brings us to the modern era and the researchers
[11:19] Speaker 2: finally unlocking that 1960s time capsule.
[11:22] Speaker 3: The new keys.
[11:23] Speaker 2: Specifically, a graduate research assistant at Florida State University named
[11:28] Speaker 2: Joseph Fry Jones.
[11:29] Speaker 3: Fry Jones, right.
[11:31] Speaker 2: He and his team got their hands on both the
[11:32] Speaker 2: 1969 Murchison Rock and the 2019 Aguasarcas Rock.
[11:37] Speaker 3: Yeah.
[11:38] Speaker 2: And they had the new keys to open them.
[11:39] Speaker 3: What Fry Jones and his team did was apply a
[11:42] Speaker 3: level of analytical resolution that was basically science fiction 50
[11:45] Speaker 3: years ago.
[11:46] Speaker 2: Science fiction.
[11:47] Speaker 3: Oh, entirely. They proved that we can now look at
[11:49] Speaker 3: the molecular architecture hidden inside these rocks that previous generations
[11:53] Speaker 3: simply could not see.
[11:55] Speaker 2: And what makes this so incredibly dramatic is the contrast
[11:59] Speaker 2: between these two specific rocks.
[12:00] Speaker 3: Murchison and Aguas Arctis. Right.
[12:03] Speaker 2: Like we said, they're essentially cousins. They belong to the
[12:05] Speaker 2: same classification of carbonaceous chondrites.
[12:07] Speaker 3: So they should be similar?
[12:09] Speaker 2: If you put them side by side on a table
[12:10] Speaker 2: right now, they look remarkably similar on the surface. Just
[12:13] Speaker 2: two dark rocks. They share that same dark, crumbly, carbon-rich exterior.
[12:20] Speaker 2: But that visual similarity is a total bait-and-switch.
[12:23] Speaker 3: Oh, completely.
[12:24] Speaker 2: Because what Fry Jones found inside completely shattered our understanding
[12:28] Speaker 2: of the early solar system.
[12:29] Speaker 3: What's fascinating here is the sheer staggering complexity of what
[12:33] Speaker 3: they found.
[12:34] Speaker 2: Complexity is the word.
[12:35] Speaker 3: When they ran the modern analysis on just a tiny
[12:38] Speaker 3: microscopic sample of each meteorite, they didn't just find a
[12:42] Speaker 3: few basic carbon molecules.
[12:44] Speaker 2: Like the guys in the 70s did.
[12:46] Speaker 3: Right, or a handful of amino acids. They found tens
[12:50] Speaker 3: of thousands of entirely distinct carbon-based molecules.
[12:54] Speaker 2: Tens. Tens of thousands.
[12:55] Speaker 3: Tens of thousands.
[12:56] Speaker 2: In a tiny sliver of rock.
[12:57] Speaker 3: Yeah.
[12:58] Speaker 2: Just hidden inside the stone.
[12:59] Speaker 3: And remember, each one of those chemical formulas has the
[13:02] Speaker 3: potential to represent several unique molecular structures.
[13:06] Speaker 2: Because atoms can arrange themselves differently.
[13:08] Speaker 3: Exactly. The mathematical permutations are astronomical. These meteorites are far,
[13:13] Speaker 3: far more chemically complex than anyone anticipated.
[13:16] Speaker 2: Just overflowing with chemistry.
[13:17] Speaker 3: They are, in fact, likely among the most complex chemical
[13:20] Speaker 3: materials ever known to science.
[13:23] Speaker 2: Which leads to the comparison Fry Jones made, and I
[13:25] Speaker 2: have to admit, it really threw me for a loop
[13:28] Speaker 2: when I first heard it.
[13:29] Speaker 3: The petroleum comparison.
[13:30] Speaker 1: Yes.
[13:31] Speaker 2: He noted that the organic material inside this 5.5 billion
[13:35] Speaker 2: year old rock from space is just as complex as
[13:38] Speaker 2: petroleum deposits here on Earth.
[13:40] Speaker 3: Which is saying a lot.
[13:41] Speaker 2: Because petroleum oil is famous for being one of the
[13:45] Speaker 2: most notoriously complex, tangled, Chemical mixtures you can possibly analyze
[13:49] Speaker 2: in a laboratory.
[13:50] Speaker 3: It is a massive, incredibly dense web of hydrocarbons.
[13:55] Speaker 2: Right.
[13:55] Speaker 3: It's so complex that scientists often refer to petroleum characterization
[13:59] Speaker 3: as petroleomics.
[14:00] Speaker 2: Petroleomics?
[14:01] Speaker 3: Yeah, because it requires its own entire branch of analytical
[14:04] Speaker 3: chemistry just to untangle.
[14:06] Speaker 2: Right. But here is my massive sticking point.
[14:08] Speaker 3: Okay.
[14:08] Speaker 2: I want to challenge this directly. Because how does petroleum
[14:12] Speaker 2: form on Earth?
[14:13] Speaker 3: From life.
[14:13] Speaker 2: It forms from life. It's the product of millions of
[14:16] Speaker 2: years of dead biology. algae, zooplankton, ancient plant matter, all
[14:20] Speaker 2: sinking to the bottom of an ocean.
[14:21] Speaker 3: Getting buried.
[14:22] Speaker 2: Getting buried under millions of tons of sediment and then
[14:26] Speaker 2: being slowly cooked and crushed under intense geological heat and pressure.
[14:31] Speaker 3: A very specific biological process.
[14:33] Speaker 2: It is a biological product. So how can a rock
[14:36] Speaker 2: that was floating in a freezing vacuum a billion years
[14:39] Speaker 2: before Earth even existed have the exact same level of
[14:42] Speaker 2: chemical complexity?
[14:43] Speaker 3: It seems impossible.
[14:44] Speaker 2: There were no ancient oceans in space? There was no
[14:47] Speaker 2: dead algae to get crushed?
[14:49] Speaker 3: You've hit on the exact mind-bending revelation of this research.
[14:53] Speaker 2: Okay, explain to me.
[14:54] Speaker 3: The assumption has always been that to get chemistry that complex,
[14:57] Speaker 3: to get something as tangled as petroleum, you need the
[14:59] Speaker 3: massive engine of biological life.
[15:01] Speaker 2: And geological heat to drive it.
[15:03] Speaker 3: Exactly. But this discovery completely upends that assumption. It proves
[15:08] Speaker 3: empirically that you do not need biological life to create
[15:12] Speaker 3: intensely complex organic chemistry.
[15:14] Speaker 2: So space itself is doing the cooking.
[15:16] Speaker 3: Exactly. But it's a different kind of cooking.
[15:18] Speaker 2: What kind of cooking is space doing?
[15:19] Speaker 3: Well, instead of geological pressure and geothermal heat down in
[15:22] Speaker 3: the Earth, you have the raw chaotic energy of the
[15:26] Speaker 3: early solar nebula.
[15:27] Speaker 2: So radiation and stuff.
[15:29] Speaker 3: Huge amounts of extreme radiation. You have Freezing cold photochemistry
[15:34] Speaker 3: happening on the surface of ice grains.
[15:36] Speaker 2: Photochemistry from Starlight.
[15:38] Speaker 3: Yes. You have cosmic rays shattering simple molecules and forcing
[15:43] Speaker 3: them to recombine in bizarre, complex ways.
[15:46] Speaker 2: Just blasting them together.
[15:48] Speaker 3: The universe was already operating a staggeringly intricate organic chemistry
[15:53] Speaker 3: laboratory long before biology ever entered the picture.
[15:56] Speaker 2: That is wild.
[15:57] Speaker 3: And this brings us back to that contrast between The
[16:00] Speaker 3: Murchison and Aguas Zarkas meteorites.
[16:04] Speaker 2: Right, because we said they were different.
[16:05] Speaker 3: Because even though they look similar on the outside and
[16:07] Speaker 3: they both contain this petroleum level complexity, their internal chemical
[16:12] Speaker 3: fingerprints are vastly different.
[16:14] Speaker 2: Wait, I want to make sure I understand this. Sure.
[16:16] Speaker 2: They are from the same family of asteroids. They both
[16:18] Speaker 2: look like dark charcoal. They both contain tens of thousands
[16:22] Speaker 2: of complex molecules.
[16:23] Speaker 3: Yep, both of them do.
[16:24] Speaker 2: But you're saying the actual molecules inside them aren't the same.
[16:27] Speaker 3: That's the twist.
[16:28] Speaker 2: Seriously.
[16:29] Speaker 3: Despite that massive volume of complexity, they actually share only
[16:32] Speaker 3: a remarkably small fraction of those specific complex molecules.
[16:36] Speaker 2: So they're distinct.
[16:37] Speaker 3: Very. Murchison has its own unique dictionary of tens of
[16:41] Speaker 3: thousands of molecules, and Aguasarcas has a completely different dictionary.
[16:46] Speaker 2: Like they read two different books.
[16:47] Speaker 3: They are chemically distinct, and the implications of that are
[16:50] Speaker 3: profound because it tells us, unequivocally, that space is not uniformed.
[16:56] Speaker 2: Space is not uniform. Let's really dig into that phrase.
[16:59] Speaker 3: It's an important one.
[17:00] Speaker 2: Because I think when a lot of us picture the
[17:03] Speaker 2: early solar system or a solar nebula, we picture this big, spinning,
[17:07] Speaker 2: homogenous soup of dust.
[17:09] Speaker 3: A giant blender.
[17:10] Speaker 2: Like you put a bunch of dirt and gas in
[17:12] Speaker 2: a cosmic blender and hit puree. We assume it's just
[17:15] Speaker 2: a big gray cloud where everything's pretty much exactly the same,
[17:18] Speaker 2: evenly mixed from edge to edge.
[17:19] Speaker 3: And that is exactly the misconception this research shatters.
[17:23] Speaker 2: So it wasn't a soup.
[17:24] Speaker 3: The primordial solar system wasn't a bland, uniform soup at all.
[17:28] Speaker 3: Think of it more like a vast, turbulent, highly varied topography.
[17:33] Speaker 2: Topography.
[17:34] Speaker 3: Yeah.
[17:34] Speaker 2: Like mountains and valleys of chemicals.
[17:37] Speaker 3: Exactly. It was a dynamic matrix of organic chemistry where
[17:40] Speaker 3: the local environment dictated everything. Asteroids forming in different pockets
[17:45] Speaker 3: of that solar nebula experienced radically different conditions.
[17:49] Speaker 2: So location is everything.
[17:51] Speaker 3: An asteroid forming closer to the young, violent sun would
[17:56] Speaker 3: have experienced intense heat and specific types of solar wind.
[18:00] Speaker 2: Baking it.
[18:00] Speaker 3: Baking it, right. An asteroid forming further out beyond the
[18:04] Speaker 3: snow line would have interacted with different complex ice formations
[18:08] Speaker 3: and freezing temperatures.
[18:09] Speaker 2: But what if it was near another star or something?
[18:11] Speaker 3: Well, some might have been bombarded by intense radiation from
[18:15] Speaker 3: a nearby dying star or experienced distinct physical shock waves
[18:19] Speaker 3: from a supernova explosion.
[18:21] Speaker 2: So every single asteroid, every single piece of debris out
[18:24] Speaker 2: there is like its own isolated, unique chemistry laboratory.
[18:28] Speaker 3: Yes.
[18:28] Speaker 2: And they've been running completely different chemical experiments in the
[18:31] Speaker 2: dark for billions of years.
[18:33] Speaker 3: Precisely. If every rock holds a completely different chemical matrix—
[18:38] Speaker 3: then the universe is infinitely more complex than just a
[18:40] Speaker 3: void filled with identical floating debris.
[18:43] Speaker 2: It's not just a dusty room.
[18:44] Speaker 3: No, the cosmic ingredients that eventually rained down on early
[18:48] Speaker 3: Earth weren't just one standard generic flavor of space dust.
[18:52] Speaker 2: It was a buffet.
[18:53] Speaker 3: It was a vast, chaotic, highly diverse menu of organic compounds.
[18:58] Speaker 2: Which means the building blocks of life are incredibly diverse.
[19:02] Speaker 2: And Earth was getting bombarded by millions of different chemical recipes.
[19:06] Speaker 3: All trying to find a foothold.
[19:07] Speaker 2: Okay, but I want to shift gears because we need
[19:10] Speaker 2: to talk about how Joseph Roy Jones actually figured this out.
[19:13] Speaker 3: The methodology.
[19:14] Speaker 2: Yeah, how do you look inside a rock and map
[19:17] Speaker 2: tens of thousands of invisible molecules? And the physical process
[19:21] Speaker 2: he used is both awesome and, well, slightly horrifying to
[19:25] Speaker 2: me as a lover of history.
[19:27] Speaker 3: It is a bit intense.
[19:28] Speaker 2: You're talking about the Murchison meteorite, a priceless 5.5 billion
[19:32] Speaker 2: year old artifact from the dawn of time. It's sitting
[19:35] Speaker 2: protected in a museum in Chicago.
[19:38] Speaker 3: Safe and sound.
[19:39] Speaker 2: Safe and sound. And what does Fry Jones do? He
[19:41] Speaker 2: has to physically crush these pristine ancient samples.
[19:45] Speaker 3: He had to break them down.
[19:46] Speaker 2: He literally breaks them down with force and then dissolves
[19:49] Speaker 2: the fragments in organic solvents like methanol and ethanol.
[19:52] Speaker 3: It is the ultimate act of destruction for the sake
[19:55] Speaker 3: of discovery.
[19:56] Speaker 2: It feels almost sacrilegious. It's like taking an original Gutenberg Bible,
[20:00] Speaker 2: ripping the pages out, and tossing them into a vat
[20:03] Speaker 2: of acid just to figure out what brand of ink
[20:05] Speaker 2: they used in the 1400s.
[20:06] Speaker 3: That's a vivid image.
[20:08] Speaker 1: You are.
[20:09] Speaker 2: Utterly destroying the artifact to understand it.
[20:11] Speaker 3: It does feel counterintuitive to take something so incredibly rare
[20:15] Speaker 3: and physically obliterate it. Right. But we have to remember
[20:18] Speaker 3: the scientific goal here. The macro structure of the rock,
[20:21] Speaker 3: the dark charred shape it takes sitting on a museum
[20:25] Speaker 3: pedestal can only tell us so much.
[20:28] Speaker 2: We already looked at it for 50 years.
[20:30] Speaker 3: Exactly. We already learned everything we could from just looking
[20:33] Speaker 3: at it. To understand the origins of the solar system,
[20:35] Speaker 3: we have to go down to the molecular level.
[20:38] Speaker 2: And you can't do that with it intact.
[20:40] Speaker 3: And to do that, you have to force the rock
[20:42] Speaker 3: to give up its secrets. You have to liberate those
[20:44] Speaker 3: trapped molecules from the stone matrix that have been locked
[20:47] Speaker 3: inside for five billion years.
[20:49] Speaker 2: So he takes this priceless space rock, crushes it into
[20:52] Speaker 2: a powder, dissolves it in alcohol, and turns it into
[20:55] Speaker 2: a liquid solution.
[20:57] Speaker 3: Meteorite juice.
[20:57] Speaker 2: Meteorite juice. And then he puts that liquid into a machine.
[21:01] Speaker 2: But this is not just a microscope you'd find in
[21:03] Speaker 2: a high school chemistry class.
[21:04] Speaker 3: Oh, definitely not.
[21:05] Speaker 2: This work was done at the National High Magnetic Field Laboratory.
[21:09] Speaker 3: Known as the MAG Lab.
[21:10] Speaker 2: The MAG Lab. They put this dissolved meteorite juice into
[21:14] Speaker 2: a record 21 Tesla FTICR spectrometer.
[21:18] Speaker 3: A mouthful.
[21:19] Speaker 2: And I need you to explain this to me, because
[21:21] Speaker 2: it sounds like a piece of the warp drive from
[21:24] Speaker 2: Star Trek.
[21:25] Speaker 3: It is a staggering marvel of modern engineering.
[21:29] Speaker 2: So what does FTICR mean?
[21:31] Speaker 3: It stands for Fourier Transform Ion Cyclotron Resonance.
[21:34] Speaker 2: Okay, I understood none of those words.
[21:36] Speaker 3: It's okay. And this specific machine at the MagLAD is
[21:39] Speaker 3: the highest performing system in the world for this type
[21:41] Speaker 3: of analysis.
[21:42] Speaker 2: Highest performing in the world. I want to make sure you,
[21:44] Speaker 2: the listener, really grasp the scale of what a 21
[21:48] Speaker 2: Tesla magnet actually is.
[21:50] Speaker 3: Because it's huge.
[21:51] Speaker 2: Tesla is the unit we use to measure magnetic field strength.
[21:54] Speaker 2: If you have ever had an MRI at a hospital...
[21:58] Speaker 2: You know how powerful those magnets are.
[22:00] Speaker 3: They make a massive banging noise.
[22:02] Speaker 1: Yes.
[22:03] Speaker 2: And they tell you to take off all your metal,
[22:04] Speaker 2: your watch, your belt, because the magnet could literally rip
[22:08] Speaker 2: a chair across the room.
[22:09] Speaker 3: Very dangerous if you aren't careful.
[22:11] Speaker 2: Now, a standard hospital MRI operates at about 1.5 to
[22:16] Speaker 2: maybe 3 Tesla.
[22:18] Speaker 3: 3 is on the high end.
[22:19] Speaker 2: This machine operates at 21 Tesla.
[22:22] Speaker 3: 21.
[22:22] Speaker 2: It is a monstrous, almost terrifying amount of magnetic force.
[22:27] Speaker 3: To give some context to how legendary this specific spectrometer
[22:31] Speaker 3: is within the scientific community, you have to understand what
[22:35] Speaker 3: it's usually used for.
[22:37] Speaker 2: What else do they test in it?
[22:38] Speaker 3: Well, because of its unprecedented magnetic resolution, it is the
[22:41] Speaker 3: go-to instrument on the Known to man.
[22:48] Speaker 2: Oh, like the petroleum.
[22:49] Speaker 3: Exactly. When scientists need to map the exact makeup of
[22:52] Speaker 3: forever chemicals, PFAS, in our water supply, they use this machine.
[22:56] Speaker 2: Wow.
[22:57] Speaker 3: When they need to untangle the absurd complexities of the
[22:59] Speaker 3: petroleum mixtures we talked about earlier, they bring it here.
[23:02] Speaker 2: Okay, but how does a giant magnet actually weigh a molecule?
[23:06] Speaker 3: Good question.
[23:07] Speaker 2: Because that's what it's doing, right? It's measuring mass.
[23:08] Speaker 3: Yes, very precisely. Let's break down the mechanics of the
[23:12] Speaker 3: ion cyclotron resonance part.
[23:14] Speaker 2: Okay.
[23:14] Speaker 3: First, you take the dissolved meteorite sample and you ionize it.
[23:18] Speaker 2: Meaning you zap it.
[23:19] Speaker 3: You give the molecules an electrical charge, yeah. Then you
[23:22] Speaker 3: inject them into the center of this massive 21 Tesla
[23:26] Speaker 3: magnetic field.
[23:27] Speaker 2: Into the danger zone.
[23:28] Speaker 3: Now, a fundamental rule of physics is that when a
[23:32] Speaker 3: charged particle enters a strong magnetic field, it doesn't just
[23:35] Speaker 3: fly straight.
[23:36] Speaker 2: It bends.
[23:37] Speaker 3: The magnetic force pushes on it perpendicularly, causing the particle
[23:41] Speaker 3: to move in a circle and it starts orbiting.
[23:44] Speaker 2: Just spinning around.
[23:45] Speaker 3: This is the cyclotron motion.
[23:47] Speaker 2: So you have tens of thousands of molecules spinning in
[23:50] Speaker 2: microscopic circles inside this giant magnet.
[23:52] Speaker 3: Exactly. And here is the crucial part. The frequency at
[23:56] Speaker 3: which they spin, how many times they complete a circle
[23:58] Speaker 3: per second, is dictated purely and exclusively by their mass.
[24:03] Speaker 2: Oh, because heavier things are harder to spin.
[24:05] Speaker 3: Exactly. A heavier molecule will spin slightly slower. A lighter
[24:09] Speaker 3: molecule will spin slightly faster.
[24:11] Speaker 2: I want to use an analogy here to see if
[24:12] Speaker 2: I'm getting this.
[24:13] Speaker 3: Go for it.
[24:13] Speaker 2: Imagine you, the listener, are standing in a pitch black
[24:18] Speaker 2: concert hall. And the room is filled with thousands of
[24:22] Speaker 2: different bells floating in the air.
[24:23] Speaker 3: Okay, I like this.
[24:24] Speaker 2: Tiny little hand bells, medium-sized school bells, massive heavy church bells. Now,
[24:30] Speaker 2: if you hit them all at once, it's just a
[24:31] Speaker 2: deafening wall of noise.
[24:33] Speaker 3: That's a cacophony.
[24:34] Speaker 2: You can't tell what's what.
[24:35] Speaker 3: Yeah.
[24:35] Speaker 2: But this FTICR machine acts like an acoustic genius with
[24:39] Speaker 2: a perfect ear.
[24:40] Speaker 3: Ah, I see.
[24:41] Speaker 2: By listening to the chaotic noise, it can pick out
[24:44] Speaker 2: the exact pitch of every single bell ringing in the dark.
[24:47] Speaker 3: That is a phenomenal analogy.
[24:49] Speaker 2: Am I close?
[24:50] Speaker 3: Very close. In the spectrometer, the sound is actually the
[24:53] Speaker 3: faint electrical current that these spinning ions induce in the
[24:56] Speaker 3: detector plates.
[24:57] Speaker 2: Oh, so they emit a current as they spin.
[24:59] Speaker 3: Right. The machine listens to this incredibly complex overlapping electrical signal.
[25:05] Speaker 3: Then it uses a complex mathematical algorithm, the Fourier transform
[25:09] Speaker 3: part of the name, and to untangle that single wave
[25:11] Speaker 3: of noise into all of its individual frequencies.
[25:13] Speaker 2: Like unbaking a cake.
[25:15] Speaker 3: Yes. And because we know that frequency corresponds exactly to mass,
[25:20] Speaker 3: we suddenly know the exact precise mass of every single
[25:25] Speaker 3: molecule in that mixture.
[25:26] Speaker 2: Down to what level?
[25:27] Speaker 3: Down to the mass of a single electron.
[25:29] Speaker 2: Just from the spin. So from the pitch of the bell,
[25:31] Speaker 2: you know exactly how much the bell weighs.
[25:33] Speaker 3: Yep.
[25:34] Speaker 2: And from the weight, you know the chemical formula. You
[25:36] Speaker 2: know exactly how many Carbon atoms, hydrogen atoms, and oxygen
[25:41] Speaker 2: atoms make up that specific molecule.
[25:44] Speaker 3: Precisely. It gives them a complete exhaustive inventory of the
[25:47] Speaker 3: exact ingredients present in tens of thousands of distinct molecules.
[25:51] Speaker 2: Which is an incredible triumph of physics and engineering.
[25:53] Speaker 3: It really is.
[25:54] Speaker 2: But, and this is a big but, knowing the chemical
[25:57] Speaker 2: formula isn't actually enough, is it?
[25:59] Speaker 3: No, it is not.
[26:00] Speaker 2: Because it's just a list.
[26:01] Speaker 3: And this is where the story of this research takes
[26:03] Speaker 3: another massive, almost unbelievable leap forward.
[26:07] Speaker 2: Why?
[26:07] Speaker 3: Because mass spectrometry, even with the most powerful 21 Tesla
[26:12] Speaker 3: magnet in the world, can only tell you the chemical formula.
[26:15] Speaker 2: Just the ingredients.
[26:17] Speaker 3: It tells you the raw ingredients. It gives you a
[26:19] Speaker 3: grocery list. But a grocery list does not tell you
[26:22] Speaker 3: how the cake was baked.
[26:24] Speaker 2: Or what shape the cake is.
[26:25] Speaker 3: Exactly.
[26:26] Speaker 2: Here's where it gets really interesting. The researchers at the
[26:29] Speaker 2: MAG Lab realized they had hit a wall.
[26:32] Speaker 3: They had all this data.
[26:33] Speaker 2: They had the formulas for technology. Tens of thousands of
[26:37] Speaker 2: extraterrestrial molecules. They knew what the ingredients were. But they
[26:41] Speaker 2: needed to see the actual physical structure.
[26:44] Speaker 3: To see the shape.
[26:45] Speaker 2: So they teamed up with a senior staff scientist named
[26:48] Speaker 2: Percy Zoll over at the Center for Functional Nanomaterials at
[26:52] Speaker 2: Brookhaven National Laboratory.
[26:54] Speaker 3: Percy Zoll is brilliant.
[26:55] Speaker 2: And their goal was to do something that sounds flat
[26:58] Speaker 2: out impossible. They wanted to actually image individual objects. extraterrestrial molecules.
[27:03] Speaker 3: Which is?
[27:04] Speaker 2: They wanted to take a literal photograph of the invisible.
[27:07] Speaker 3: Photograph is the best way to conceptualize it for the
[27:09] Speaker 3: general public, though the reality of the technique they used
[27:13] Speaker 3: is even more mind-bending than capturing light on a lens.
[27:16] Speaker 2: Because they can't use light, right? It's too small.
[27:18] Speaker 3: Right. Visible light waves are too big to see something
[27:20] Speaker 3: this small.
[27:21] Speaker 2: So what did Zoll use?
[27:22] Speaker 3: Zoll used a technique called high-resolution non-contact atomic force microscopy,
[27:28] Speaker 3: usually abbreviated as HRAFM.
[27:30] Speaker 2: Okay. non-contact atomic force microscopy. Let's break that down. Because again,
[27:35] Speaker 2: how does one actually take a picture of a single
[27:38] Speaker 2: solitary molecule without using light?
[27:41] Speaker 3: It relies on the fundamental invisible forces of quantum mechanics.
[27:45] Speaker 2: Oh boy, quantum mechanics.
[27:47] Speaker 3: Don't worry, it makes sense. Imagine a microscopic record player needle.
[27:51] Speaker 2: Okay, I'm picturing it.
[27:52] Speaker 3: Zoll uses an ultra-sharp And when I say ultra sharp,
[27:56] Speaker 3: I mean the very end of this tip is composed
[27:57] Speaker 3: of a single solitary molecule of carbon monoxide.
[28:01] Speaker 2: One molecule wide.
[28:02] Speaker 3: Attached to a tiny copper needle. One molecule wide.
[28:06] Speaker 2: That's absurdly sharp.
[28:07] Speaker 3: He hovers this tip just above the surface of the
[28:09] Speaker 3: meteorite sample. But importantly, the non-contact part means it never
[28:13] Speaker 3: actually touches the molecule it's scanning.
[28:15] Speaker 2: It just floats over it. If it doesn't touch it
[28:17] Speaker 2: and it doesn't use light, how does it see it?
[28:20] Speaker 3: Have you ever taken two strong magnets, say the magnets
[28:23] Speaker 3: on your fridge, and tried to push the wrong ends together.
[28:26] Speaker 2: Yes. The North Pole to the North Pole. You can
[28:30] Speaker 2: physically feel this invisible, squishy cushion of force pushing your
[28:34] Speaker 2: hands apart.
[28:35] Speaker 3: Exactly. You are feeling magnetic repulsion.
[28:38] Speaker 2: Okay. I know that feeling.
[28:39] Speaker 3: Now scale that down to the level of atoms. Every
[28:42] Speaker 3: atom is surrounded by a cloud of negatively charged electrons.
[28:45] Speaker 2: Right.
[28:46] Speaker 3: When the single carbon monoxide molecule on the tip of
[28:49] Speaker 3: the microscope gets incredibly close to the atoms of the
[28:52] Speaker 3: extraterrestrial molecule sitting on the surface, their electron clouds repel
[28:57] Speaker 3: each other.
[28:57] Speaker 2: They push back.
[28:58] Speaker 3: It's the Pauli exclusion principle in action. The microscope's tip
[29:03] Speaker 3: is attached to a tiny tuning fork that vibrates at
[29:06] Speaker 3: a specific frequency.
[29:07] Speaker 2: Okay.
[29:08] Speaker 3: As it hovers over the sample, that invisible cushion of
[29:11] Speaker 3: atomic repulsion causes the vibration frequency to shift.
[29:14] Speaker 1: Oh.
[29:15] Speaker 2: So as it scans back and forth over the invisible
[29:18] Speaker 2: landscape of the molecule... It feels the bumps of the
[29:21] Speaker 2: atoms pushing back.
[29:22] Speaker 3: Yes. And a computer maps those tiny shifts in vibration,
[29:25] Speaker 3: translating that invisible force field into a visual topographical map.
[29:29] Speaker 2: It draws a picture of the force.
[29:30] Speaker 3: It literally draws the physical shape of the molecule based
[29:34] Speaker 3: on how hard the molecule's atoms push back against the tip.
[29:38] Speaker 2: To clarify the difference here between the mass spectrometry we
[29:40] Speaker 2: just talked about and this atomic force microscopy, let's go
[29:44] Speaker 2: back to the idea of ingredients versus the final product.
[29:47] Speaker 3: It's a key distinction.
[29:48] Speaker 2: Mass spectrometry tells you that you have, say, 10 red
[29:53] Speaker 2: Lego bricks and 5 blue Lego bricks. That's your chemical formula.
[29:57] Speaker 2: You know exactly what pieces you have. Exactly. But Percy
[30:00] Speaker 2: Zoll's atomic force microscopy actually shows you the specific castle
[30:05] Speaker 2: that those bricks were built into.
[30:06] Speaker 3: The final structure.
[30:07] Speaker 2: Because, as we know, if I give you ten red
[30:09] Speaker 2: bricks and five blue bricks, you could build a tower,
[30:12] Speaker 2: or a car, or a flat square.
[30:13] Speaker 3: The possibilities are endless.
[30:15] Speaker 2: The exact same chemical formula, the exact same mass, can
[30:18] Speaker 2: build totally different molecular structures.
[30:21] Speaker 3: This raises an important question, which is why structure matters
[30:24] Speaker 3: so much in chemistry.
[30:25] Speaker 2: Well, why does it matter?
[30:26] Speaker 3: Especially when we are talking about the chemistry of life.
[30:28] Speaker 3: In biology, the physical 3D shape of a molecule determines
[30:32] Speaker 3: its entire function.
[30:34] Speaker 2: Just the shape.
[30:34] Speaker 3: Think of a lock and a key. A biological receptor
[30:38] Speaker 3: is a lock with a very specific, weirdly shaped keyhole. Right.
[30:42] Speaker 3: A molecule acting as the key might have all the
[30:45] Speaker 3: correct atoms, the right formula.
[30:47] Speaker 2: All the right pieces.
[30:48] Speaker 3: But if those atoms are arranged in the wrong shape,
[30:51] Speaker 3: it will not fit into the lock. The biological process
[30:54] Speaker 3: simply won't work.
[30:55] Speaker 2: It's useless.
[30:56] Speaker 3: So moving beyond mere atom counts and formulas to complete
[31:01] Speaker 3: structural identification is a monumental leap.
[31:04] Speaker 2: Because now we can see if it fits the locks
[31:06] Speaker 2: of life.
[31:07] Speaker 3: The atomic repulsion allows us to see exactly how these
[31:10] Speaker 3: ancient carbon rings and chains are physically linked together.
[31:13] Speaker 2: But the physical process itself, I mean, we really need
[31:17] Speaker 2: to dwell on the human element here for a second.
[31:19] Speaker 3: It is grueling work.
[31:20] Speaker 2: Because when we hear microscope, we tend to think you
[31:22] Speaker 2: just put a slide under a lens, look through an eyepiece,
[31:25] Speaker 2: and snap a picture with your phone.
[31:27] Speaker 3: A 10-second process.
[31:28] Speaker 1: Right.
[31:28] Speaker 2: But this HRAFM technique is described in the literature as
[31:32] Speaker 2: incredibly tedious and elaborate.
[31:34] Speaker 3: Very much so.
[31:35] Speaker 2: Successfully imaging just a few individual molecules out of this
[31:39] Speaker 2: unimaginably complex meteorite mixture... Can take days. Sometimes it takes months.
[31:45] Speaker 3: Months for one image. It requires a level of patience
[31:48] Speaker 3: and precision that is almost monastic.
[31:51] Speaker 2: Monastic is the right word.
[31:52] Speaker 3: You have to understand the scale they are operating on.
[31:55] Speaker 3: You are dealing with a world so infinitesimally small that
[31:59] Speaker 3: the slightest disturbance from the macro world can completely ruin
[32:03] Speaker 3: the scan.
[32:04] Speaker 2: What kind of disturbance?
[32:05] Speaker 3: Well, if a truck drives down a road three miles away,
[32:08] Speaker 3: the microscopic vibration traveling through the earth can blur the image.
[32:11] Speaker 2: Three miles away.
[32:12] Speaker 3: Yeah. If the room's ambient temperature fluctuates by a fraction
[32:15] Speaker 3: of a degree, the thermal expansion of the equipment can
[32:18] Speaker 3: throw off the alignment of the single molecule tip.
[32:21] Speaker 2: Just a change in room temperature.
[32:22] Speaker 3: So the equipment has to be isolated in ultra-high vacuum chambers,
[32:26] Speaker 3: cooled to near absolute zero, and mounted on massive vibration
[32:30] Speaker 3: damping tables.
[32:31] Speaker 2: Months. I want you, the listener, to imagine the sheer
[32:35] Speaker 2: patience required by Percy Zoll.
[32:37] Speaker 3: It's a step.
[32:37] Speaker 2: To sit in that lab. To spend weeks or months
[32:40] Speaker 2: painstakingly hovering an ultra-sharp tip over a single molecule, mapping
[32:45] Speaker 2: the atomic repulsion line by line by line.
[32:48] Speaker 3: A true dedication to the craft.
[32:49] Speaker 2: I try to imagine what it must feel like sitting
[32:51] Speaker 2: in that quiet, climate-controlled room, looking at the computer monitor
[32:56] Speaker 2: as the topographical map slowly renders.
[32:58] Speaker 3: Watching it appear.
[32:59] Speaker 2: And realizing that you were the very first human being
[33:02] Speaker 2: in the history of the world to see the exact...
[33:06] Speaker 2: Physical architecture of a molecule that was forged in the
[33:09] Speaker 2: dark before the Earth even existed.
[33:11] Speaker 3: It is a profound, goosebump-inducing moment of discovery.
[33:15] Speaker 2: I'd have a panic attack.
[33:16] Speaker 3: It's intense, and it is incredibly rare. This specific kind
[33:21] Speaker 3: of non-contact atomic force microscopy has only been successfully used
[33:25] Speaker 3: on meteorite material three times in the entire history of science.
[33:28] Speaker 2: Three times in history. That makes these images practically as
[33:31] Speaker 2: rare as the meteorites themselves.
[33:33] Speaker 3: They are treasures in their own right.
[33:34] Speaker 2: And the images they produced, they aren't just blurry blobs
[33:37] Speaker 2: or data points on a line graph.
[33:39] Speaker 3: No, they are highly detailed.
[33:40] Speaker 2: When you look at the scans, you can actually see
[33:44] Speaker 2: the hexagonal rings of carbon. You can see the bonds
[33:46] Speaker 2: connecting the atoms.
[33:47] Speaker 3: It's a physical framework.
[33:48] Speaker 2: You can physically see the geometry of stardust.
[33:50] Speaker 3: Which perfectly leads into what Zoll decided to call this
[33:55] Speaker 3: ongoing joint effort between the mass spec team at the
[33:58] Speaker 3: Mag Lab and his imaging team at Brookhaven.
[34:01] Speaker 2: He gave you the name.
[34:02] Speaker 3: He nicknamed it the Stardust Collaboration.
[34:04] Speaker 2: Stardust Collaboration. I love that name.
[34:06] Speaker 3: It has a ring to it.
[34:08] Speaker 2: It's so poetic, but at the same time, it is
[34:11] Speaker 2: perfectly scientifically accurate.
[34:13] Speaker 3: It really is. It is a direct, literal nod to
[34:15] Speaker 3: how these elements act as the fundamental building blocks of
[34:19] Speaker 3: planets and ultimately of biology itself.
[34:22] Speaker 2: We use the phrase, we are made of stardust, so
[34:24] Speaker 2: often that it almost sounds like a cliche.
[34:26] Speaker 3: Like a bumper sticker. Right.
[34:27] Speaker 2: But it is a hard empirical fact. The carbon making
[34:31] Speaker 2: up the cells in your skin... the iron carrying oxygen
[34:34] Speaker 2: in your blood, the calcium in your bones. All of it.
[34:37] Speaker 2: It was all forged in the nuclear furnaces of ancient stars,
[34:40] Speaker 2: blown out into the cosmos by supernovas and scattered across
[34:44] Speaker 2: the universe.
[34:45] Speaker 3: And now, thanks to this collaboration, we are seeing those
[34:47] Speaker 3: complex pre-biological building blocks in their pristine original state.
[34:53] Speaker 2: And Zal, he's a really fascinating guy to place in
[34:56] Speaker 2: this context. He isn't just a pure lab rat.
[34:58] Speaker 3: No, he has outside passions.
[35:00] Speaker 2: The background on him notes that astronomy is actually a
[35:02] Speaker 2: major hobby of his.
[35:04] Speaker 3: He looks at the stars.
[35:06] Speaker 2: He's looking at these microscopic topographical maps, not just as
[35:09] Speaker 2: a chemist crunching data, but with the eye of someone
[35:12] Speaker 2: who stands in his backyard and looks up at the
[35:15] Speaker 2: vastness of the night sky.
[35:17] Speaker 3: Trying to connect the microscopic with the cosmic.
[35:20] Speaker 2: And looking at these structures forces him to pose this massive,
[35:24] Speaker 2: deeply philosophical question regarding these organic building blocks of life.
[35:29] Speaker 3: What's the question?
[35:30] Speaker 2: He asks, where did they come from? And what does
[35:33] Speaker 2: this say about the chances of other life in the universe?
[35:35] Speaker 2: So what does this all mean?
[35:36] Speaker 3: If we connect this to the bigger picture, it forces
[35:39] Speaker 3: a radical shift in how we think about the origins
[35:42] Speaker 3: of biology.
[35:42] Speaker 2: A shift happened.
[35:43] Speaker 3: Let's trace the logic. We now know, as a matter
[35:46] Speaker 3: of empirical fact provided by the Mag Lab in Brookhaven,
[35:49] Speaker 3: that the early solar system was rich with insanely complex,
[35:54] Speaker 3: highly varied organic material.
[35:56] Speaker 2: The petroleum level stuff.
[35:57] Speaker 3: Tens of thousands of different complex molecules mimicking the complexity
[36:01] Speaker 3: of petroleum. And we know that these molecules are incredibly resilient.
[36:05] Speaker 2: Because they survived the trip.
[36:07] Speaker 3: They survived a multi-billion year journey across the freezing radioactive
[36:13] Speaker 3: vacuum of the universe.
[36:14] Speaker 2: Which is hostile.
[36:15] Speaker 3: Very. They survived the violent heat of atmospheric entry, crashing
[36:19] Speaker 3: into the Australian outback and the Costa Rican rainforest, and
[36:23] Speaker 3: they remain intact for us to find.
[36:25] Speaker 2: So they are tough. They're complex. And they are everywhere.
[36:28] Speaker 3: Everywhere.
[36:29] Speaker 2: I want you listening to this right now to just
[36:31] Speaker 2: hold your hands out in front of you. Look at
[36:33] Speaker 2: the lines on your palms, the structure of your fingers.
[36:36] Speaker 3: And you'll find biology.
[36:37] Speaker 2: Think about the chemical foundations that make up your skin,
[36:39] Speaker 2: your blood, the DNA coiled inside your skin.
[36:42] Speaker 3: All that complex.
[36:43] Speaker 2: Based on what we are learning from Murchison and Aguazarkas,
[36:46] Speaker 2: it is highly likely that the chemical precursors to those
[36:49] Speaker 2: exact biological structures were forged in the deep, uneven, chaotic
[36:54] Speaker 2: matrix of Of the early solar system.
[36:57] Speaker 3: Cooked up in the dark of space.
[36:58] Speaker 2: They rained down on a young, sterile, molten Earth. And
[37:02] Speaker 2: they provided the raw, ready-made materials for everything that followed.
[37:06] Speaker 3: It introduces what Zoll refers to as a profound chicken-and-the-egg
[37:10] Speaker 3: paradox for astrobiologists.
[37:13] Speaker 2: A chicken-and-the-egg paradox.
[37:14] Speaker 3: Uh-huh.
[37:15] Speaker 2: Let's bounce this around because it's such a massive concept
[37:17] Speaker 2: to grapple with.
[37:18] Speaker 3: It breaks your brain a little.
[37:20] Speaker 2: If life absolutely requires these highly complex molecules to exist.
[37:24] Speaker 3: Which it does.
[37:25] Speaker 2: But these molecules are naturally generated in the cold vacuum
[37:28] Speaker 2: of space, entirely without biology, long before planets even have
[37:31] Speaker 2: a chance to form.
[37:32] Speaker 3: Before the Earth is even a rock.
[37:34] Speaker 2: Does life actually originate on planets? Or does the true
[37:37] Speaker 2: origin of life, the heavy lifting of chemical evolution, happen
[37:40] Speaker 2: out there in the stardust?
[37:42] Speaker 3: It entirely blurs the rigid line we like to draw
[37:45] Speaker 3: between abiotic chemistry and living biology.
[37:47] Speaker 2: We always separate them.
[37:48] Speaker 3: We usually think of a sterile planet where lightning hits
[37:51] Speaker 3: a puddle and magic happens.
[37:53] Speaker 2: Frankenstein style.
[37:54] Speaker 3: Exactly. But if a rock floating in the hard vacuum
[37:58] Speaker 3: of space can generate the chemical complexity of petroleum without
[38:02] Speaker 3: any biological processes at all, then perhaps the jump from
[38:05] Speaker 3: complex chemistry to living biology isn't as massive or miraculous
[38:10] Speaker 3: a leap as we once thought.
[38:12] Speaker 2: It's just the next logical step.
[38:14] Speaker 3: Perhaps planets like Earth aren't the genius inventors of life.
[38:18] Speaker 3: Perhaps they are just the fertile soil where the seeds
[38:21] Speaker 3: of life, which were already fully formed and floating in space...
[38:25] Speaker 3: can finally land, take root, and bloom into biology.
[38:29] Speaker 2: The planets are just the incubators.
[38:31] Speaker 3: Just a warm place to grow.
[38:33] Speaker 2: The molecular blueprints were already drawn up billions of years
[38:36] Speaker 2: earlier by the chaos of the solar nebula.
[38:38] Speaker 3: Long before we got here.
[38:39] Speaker 2: It's like the universe is just a massive factory, constantly
[38:42] Speaker 2: manufacturing these infinitely varied Lego bricks of life and just
[38:46] Speaker 2: scattering them everywhere across the galaxy.
[38:48] Speaker 3: Just tossing them out.
[38:49] Speaker 2: Waiting to see where they land, what temperatures they hit,
[38:51] Speaker 2: and what they eventually build.
[38:53] Speaker 3: And... Returning to the point about the sheer diversity of
[38:56] Speaker 3: those bricks, remember that the Murchison and Aguas Zarcas meteorites,
[39:00] Speaker 3: despite being from the exact same family of asteroids, had
[39:04] Speaker 3: vastly different chemical fingerprints.
[39:06] Speaker 2: Right. Space is not uniform.
[39:08] Speaker 3: Space is not uniform. This means the universe isn't just
[39:11] Speaker 3: scattering one single uniform type of Lego brick.
[39:15] Speaker 2: It's scattering all the sets.
[39:16] Speaker 3: It's scattering millions of different sets with completely different instructions
[39:20] Speaker 3: into millions of different environments.
[39:22] Speaker 2: And we are just one outcome.
[39:24] Speaker 3: The chances that Earth is the only place in the
[39:27] Speaker 3: entire cosmos where those pre-packaged successfully assembled into something capable
[39:32] Speaker 3: of looking back up at the stars seems increasingly, almost
[39:36] Speaker 3: absurdly improbable when you view it through this lens.
[39:40] Speaker 2: It really does. It takes the old, depressing idea of
[39:43] Speaker 2: a sterile, empty, cold universe... And completely replaces it.
[39:49] Speaker 3: Replaces it with what?
[39:50] Speaker 2: With a universe that is just violently overflowing with potential
[39:52] Speaker 2: for biology. The cosmos is preloaded with the ingredients for life.
[39:57] Speaker 3: The Stardust collaboration isn't just showing us where we came from.
[39:59] Speaker 2: It's looking forward to.
[40:01] Speaker 3: By mapping the past, it is implicitly asking us to
[40:04] Speaker 3: imagine what else might be out there in the present.
[40:07] Speaker 2: This has been such an incredible journey to wrap our
[40:09] Speaker 2: heads around.
[40:09] Speaker 3: A long trip from a rock.
[40:11] Speaker 2: We started with the simple idea of holding a rock
[40:13] Speaker 2: in your hand. A 5.5 billion year old rock falling
[40:18] Speaker 2: from the sky.
[40:19] Speaker 3: Before the Earth existed.
[40:21] Speaker 2: We explored how scientists proved it wasn't just Earth dirt
[40:25] Speaker 2: by looking at the handedness of its molecules.
[40:27] Speaker 3: The left and right chiralities.
[40:29] Speaker 2: We talked about how modern researchers took these priceless ancient
[40:32] Speaker 2: artifacts and had to physically crush them, dissolving them into
[40:36] Speaker 2: organic solvents. just to force them to give up their secrets.
[40:39] Speaker 3: Breaking them to understand them.
[40:41] Speaker 2: We explore the mind-boggling physics of a 21 Tesla magnet
[40:45] Speaker 2: that can weigh individual molecules by listening to them spin
[40:48] Speaker 2: in the dark.
[40:48] Speaker 3: Just listening to the pitch of the bells.
[40:50] Speaker 2: And the painstaking, monastic, month-long process of hovering a microscopic
[40:55] Speaker 2: carbon monoxide tip over a single molecule to physically feel
[40:59] Speaker 2: its shape.
[41:00] Speaker 3: Days and months of quiet work.
[41:02] Speaker 2: And all of this intense effort, all of this destruction
[41:05] Speaker 2: and high-tech discovery... Leads us to this one monumental realization.
[41:10] Speaker 3: That space is not a void.
[41:12] Speaker 2: It is a vast, wildly diverse, overflowing matrix filled with
[41:17] Speaker 2: the complex architecture of life.
[41:20] Speaker 3: And that leaves us with a final lingering idea to
[41:22] Speaker 3: mull over.
[41:23] Speaker 2: Get me with it.
[41:24] Speaker 3: If meteorites from the exact same cosmic family have wildly
[41:28] Speaker 3: different chemical fingerprints.
[41:29] Speaker 2: Which they do.
[41:30] Speaker 3: And if space is this vast, non-uniform matrix of highly
[41:35] Speaker 3: complex organic molecules... Yes. What other impossibly intricate molecular blueprints
[41:41] Speaker 3: are floating out there right now?
[41:42] Speaker 2: Just drifting.
[41:43] Speaker 3: If the building blocks that landed on Earth built us,
[41:46] Speaker 3: what totally alien chemistries are waiting in the dark? Wow.
[41:49] Speaker 3: Waiting to crash into a sterile exoplanet somewhere across the galaxy...
[41:53] Speaker 3: and seed an entirely different, completely unrecognizable kind of biology.
[41:57] Speaker 2: That is the exact awe-inspiring thought to leave you with today.
[42:01] Speaker 3: Something to think about tonight.
[42:02] Speaker 2: The universe is infinitely more creative and infinitely more complex
[42:05] Speaker 2: than we ever gave it credit for.
[42:07] Speaker 3: It absolutely is.
[42:08] Speaker 2: Next time you are outside at night and you see
[42:11] Speaker 2: a shooting star streak across the sky, remember what microscopic,
[42:15] Speaker 2: unimaginably complex secrets might be riding along with it.
[42:18] Speaker 3: The building blocks of something entirely new.
[42:21] Speaker 2: Thank you so much for joining us on this exploration
[42:23] Speaker 2: of the cosmos. Keep looking up and we'll catch you
[42:26] Speaker 2: next time.

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