Many believe humanity's climb upward may have been assisted by outsiders. Is this possible, and if so, what does that tell us about our own past... and future? Watch my exclusive video Jupiter Brains & Mega Minds:...
Primordial Planets
Our world is ancient, but the Universe is far older. What were those first planets like, and how soon can life emerge on new ones? Watch my exclusive video Crystal Aliens hhttps://nebula.tv/videos/isaacarthur-primordial-planets Get Nebula using my link for 40% off an...
The Fermi Paradox: Fallen Empires
Go to https://brilliant.org/IsaacArthur/ to get a 30-day free trial + the first 200 people will get 20% off their annual subscription. The cosmos seem silent and empty of any great interstellar empires, but perhaps they once existed, and if so, what titanic ruins...
Could Dinosaurs Have Been Killed By Aliens?
Dinosaurs once ruled the world, and scifi often speculates they may have been a technological civilization that was wiped out. Is there even a small chance this is true, and if so, wiped out by what and who? And could we even tell? The Silurian Hypothesis:...
The Future of Archeology
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The Fermi Paradox: Absent Megastructures
Sign up for a Curiosity Stream subscription and also get a free Nebula subscription (the streaming platform built by creators) here: https://curiositystream.com/isaacarthur The great mystery of where all the aliens are in our vast Universe contemplates ancient...
Hibernating Aliens
Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur One explanation for the Fermi Paradox is that aliens may be undetected because they slumber, quietly hidden away in the galaxy. But how and why might such Extraterrestrial Empires hibernate?...
The Fermi Paradox: Firstborn
Start listening with a 30-day Audible trial and your first audiobook plus two Audible Originals are free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. As ancient and vast as the Universe is, it seems like some alien race arose in the galaxy long...
Conscious Stellar Objects
Get a free month of Curiosity Stream: http://curiositystream.com/isaacarthur Ancient cultures long thought the Sun had a mind of it's own, but could life form in stars by nature or exist by artificial origins, and what would star with a mind of its own be like? Visit...
Space Derelicts & Trash Worlds
Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Science fiction delights in showing us brave adventurers boarding abandoned spaceships, exploring ancient alien worlds and space hulks, or surviving on planets turned into giant garbage dumps, but how...
Ancient Aliens
The possibility that ancient civilizations might have encountered or even been influenced by extraterrestrials has fascinated us for as long as we knew there were distant suns they might visit from. Today we will examine the evidence and consider the numerous...
