Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Our current theory of evolution holds that all life on Earth originated from a single, simple life form billions of years ago. But what if that life did not originate on Earth? In this episode we'll...
The Dark Forest Theory is a proposed solution to the Fermi Paradox from Cixin Liu which suggests all alien civilizations remain intentionally quiet, hiding from SETI efforts and possible hostile civilizations. It also argues they may attack any civilization which does...
The Fermi Paradox asks us where all the alien civilizations are? Today we will ask if the might be hiding in the Voids, from those between the stars to the massive Supervoids like the Boötes Void. Could they be home to Extraterrestrial Empires so large they dwarf even...
A Journey to the Edge of Time and Space Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ As we continue our look at Generation Ships, vast vessels designed to carry many thousands of colonists to distant and alien worlds centuries away, we must ask...
Use my link http://www.audible.com/isaac or text "ISAAC" to 500-500 to get a free book including a copy of "Who Goes There?" and a 30-day free trial of Audible. Alien puppeteers arriving on UFOs, body snatchers, and mimics are a staple of science fiction, but are they...
Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Watch Part 2: https://youtu.be/tbvmxo90F9I For today's 2-part episode we team again with John Michael Godier to discuss the future of humanity should we head out to colonize the galaxy and find it empty,...
A look at the possibility of future civilizations rising and falling. Visit our sponsor: https://skl.sh/isaac It's long been observed that empires tend to rise and fall in a seeming cycle, never identical but sharing many similarities. Today we will examine the idea...
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...
Astronomers have been looking for signs of extraterrestrial signals for decades, and not yet found any. Today we will examine the notion of Interstellar Beacons and ask just how far away you can be heard if you want to be. Visit our Website: http://www.isaacarthur.net...
Use my link http://www.audible.com/isaac or text isaac to 500-500 to get a FREE audiobook and 30-day free trial! The idea that alien civilizations may exist but be hiding or asleep is a popular explanation for the Fermi Paradox, the apparent contradiction between the...
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In memory of Carl Sagan, this episode will review many of the topics he covered during his career and see what what we've learned about the Cosmos and its inhabitants since then. Visit our Website: http://www.isaacarthur.net Join the Facebook Group:...