Podcasts · Universe Today Podcast
[Q&A] Getting Stuck on a Planet, Dangerous Supernovae, Expansionistic Aliens
· 19 min
Episode [Q&A] Getting Stuck on a Planet, Dangerous Supernovae, Expansionistic Aliens
How big does a planet has to be to make it impossible to fly a rocket from it? Why are aliens always portrayed expansionistic? Can a supernova make us all go extinct? And in our extended Q&A+ edition, is terraforming Mars necessary for finding life there? Answering all these questions and more in this Q&A show.
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00:00 Start
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00:30 [knallpistol] How can stars in globular clusters be so close yet so far?
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03:28 [Mister Ikkus] Why everyone imagines aliens to be expansionistic?
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05:28 [Matthew Reuter] What's the limit on a planet's mass to get stuck on one?
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07:51 [James Valley] Can a supernovae take us out?
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08:50 [Paige Potter] When we colonize other places, will Earth become a concept rather than a place?
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10:50 [Vicente Hdez] What have been the keys to staying constantly active in astronomy communication?
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14:56 [Pete Harris] What to see in the Southern Hemisphere's night sky?
📺 VIDEO VERSION https://youtu.be/19phg5eP4Rs
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🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/
📩 CONTACT FRASER frasercain@gmail.com
⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)
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