# \[Q&A\] Hiding Earth from Aliens, Truth About Pyramids, Crashing Into a Black Hole

An episode of [Universe Today Podcast](https://invisiblenetwork.ai/podcast/794058155), 11 Sep 2025, 18 min.

Audio: https://c10.patreonusercontent.com/4/patreon-media/p/post/139665762/ec58908bfa674a2db727286f9d1096b4/eyJhIjoxLCJpc19hdWRpbyI6MSwicCI6MX0%3D/1.mp3?token-hash=3sQZWVg--gMTIvBq498upZovnRkCmWD0aDzJXz9s9ek%3D&token-time=1794441600

Can we make Earth invisible for possible alien invaders? What's the deal with the pyramids and their alignment to stars? Can an interstellar ship casually crash into a black hole? And what's the difference between cosmology and astronomy after all? 🔴 \[Q&A+\] No ads. Bonus question. For FREE https://patreon.com/universetoday 00:00 Start 00:27 \[Rod Tolosa\] Possible life on Venus 03:16 \[abstractedaway\] Heium-rich dwarf stars as techosignatures 04:00 \[kenji\] The truth about pyramids 06:25 \[Jakub Polášek\] Most interesting citizen science projects in astronomy/space field right now 07:21 \[Osiris Mpg\] Could an interstellar ship crash into a black hole? 08:34 \[FunkyCritter\] Will Earth's spin stop eventually? 09:12 \[Keiichi S\] Naked-eye nebula 11:03 \[Nolan Mosley\] LEO satellites and the ozone layer 13:11 \[Nanp90\] Making the Earth invisible for alienes 📺 VIDEO VERSION https://youtu.be/cuXXPrp3_PU 📰 GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 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) Support Universe Today Podcast

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