It can be hard to hear a signal 100 miles away—so what does it take to build a beacon loud enough to be heard 100,000 light years away? In this episode, we explore galactic beacons: powerful transmissions that may teach, warn, or outlast the minds that made them....
Space Freighters, Cargos & Crews
Go to https://brilliant.org/IsaacArthur/ to get a 30-day free trial and 20% off their annual subscription. One day we may settle thousands of planets and trade between them, but what would a space freighter be like, who would crew them, and what would they carry?...
Cosmic Capitals
Go to https://brilliant.org/IsaacArthur/ to get a 30-day free trial and 20% off their annual subscription. One day our civilization may settle our whole galaxy, with mighty star empires consisting of millions if not billions of worlds, but what would the centers of...
Is Our Galaxy Going To Collide With Andromeda?
We often hear that our galaxy will collide with the Andromeda Galaxy, our nearest neighbor, but in reality this is just the biggest of many titanic galactic mergers to come. Intergalactic Voyages: https://youtu.be/6aBfLA_g3og Produced, Written & Narrated by: Isaac...
Aliens Beyond the Galactic Rim?
Worlds far from the Galactic Core are thought to be low in many important elements for life, but some new research calls that into doubt, indicating that the ancient old worlds of the galactic rim might harbor alien life. See our episode The Fermi Paradox: The...
Planetary Civil War
Start listening with a 30-day Audible trial and your first audiobook is free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. Wars in the future may involve vast interplanetary conflicts or civil wars sprawling over an entire world or more, but what...
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...
Crawlonizing The Galaxy: Settling Space At Ultra-Low Speeds
Visit https://brilliant.org/isaacarthur/ to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription. Science Fiction has shown us humanity exploring the stars at hundreds of times faster than light speed, but...
Multi-Species Empires
Start listening with a 30-day Audible trial and your first audiobook is free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. Interstellar civilizations home to hundreds of peacefully cooperating alien species are a common theme in science fiction, but...
Galactic Domination: Strip Mining the Galaxy
Start listening with a 30-day Audible trial and your first audiobook is free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. From Asteroid Mining to disassembling entire alien planets all the way out to the Galactic Rim, our galaxy has untold...
Galactic Domination: Empire Eternal
Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ As we move out into space to colonize new worlds and explore the galaxy, we'll need to contemplate interstellar empires, be they alien realms or our own future dominions. Visit our Website:...
The Fermi Paradox: Galactic Disasters
Start listening with a 30-day Audible trial and your first audiobook is free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. One possible solution to the Fermi Paradox, the big question of where all the aliens are, is that some ancient galactic...
