From giant O-stars to dim brown dwarfs, we rank every stellar class by how well they could host life, Dyson swarms, and advanced civilizations across cosmic time. Watch my exclusive video Rogue AI Empires:...
If aliens invaded, how would humanity respond? From planetary defense and space warfare to unexpected diplomatic twists, we’ll explore the strategies, technologies, and scenarios that could decide our fate. Watch my exclusive video Post-Consciousness Civilizations:...
Some places in the universe are just right for life… or something stranger. Watch ‘Crystal Aliens’ tomorrow for the big picture. Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join Visit our Website:...
Could we survive on a world where even lifting a coffee cup is a struggle? Discover how high-gravity planets shape life, technology, and the future of space colonization. From immense super-Earths to black holes, we examine the worlds where gravity rules all. Watch my...
Join us as we explore the science and challenges of building self-sustaining biospheres, where humanity could one day thrive beyond Earth. Watch my exclusive video Post-Stellar Civilizations: https://nebula.tv/videos/isaacarthur-poststellar-civilizations Get Nebula...
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. Many have believed Earth might have a spirit, but Lovelock's Gaia Hypothesis contemplates this as a scientific...
Start Forging New Worlds: https://www.worldanvil.com/isaac-arthur Before we landed on the Moon, in the early days of the Cold War, Project Orion contemplated using Nuclear Bombs to power spaceships to new worlds and stars. More than half a century later, new...
Sign up with Skillshare for 2 months of Free classes: https://skl.sh/isaac5 The galaxy is a vast place with billions of potential new worlds for humanity to colonize, but interstellar space is so enormous that reaching even the nearest stars and planets by spaceship...
To see deeper into space, we will need much bigger telescopes. Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ As astronomy seeks to find and study distant planets and peer further and more accurately into space and time, the limitations of ground...
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...
A in-depth look at KIC 8462582, also known as Tabby's Star. We'll explore how this star became famous for an anomaly, what that anomaly was, and the various theories for what might be causing it. Listen or Download the audio of this episode from Soundcloud:...
This video covers what Tidal Locking is and what causes it, and looks at how this can happen to moons & exoplanets. Support the Channel on Patreon: https://www.patreon.com/IsaacArthur Listen or Download the audio of this episode from Soundcloud:...