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 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...
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...
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...
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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:...
The concept of enhancing and augmenting animal minds & bodies to be able to use and understand human technology, known as Uplifting, has long fascinated us. Today in this two-part collaboration with John Michael Godier, we will explore this concept as well as the...
We continue our look at hypothetical Alien Civilizations by examining concepts such as Zoo Hypothesis - that aliens may be keeping us secluded from the rest of the galaxy - and the motivation for non-interference, such as the Star Trek Prime Directive. Visit our...
It is often suggested that the reason we don't hear from alien civilizations is that they are in hiding. In this episode, we will explore that notion, and examine why a civilization might hide and how they would go about doing it. Visit our Website:...
We continue our look at possible explanations why life may be very rare in the Universe by examining our planet itself, and looking at which of its characteristic might be important to intelligence developing and how improbable those traits are for a given planet in a...
This episode begins our look at solutions to the Fermi Paradox - the question of why the Universe appears empty of intelligent life besides ourselves - by looking at some of the reasons why life may simply be very uncommon. Before we can contemplate what might be...