Space Factories Are Here… Better Chips Than Earth?

by | Sep 24, 2025

Semiconductors built in orbit are already outperforming Earth-made chips. Space Forge and United Semiconductors just proved zero-gravity manufacturing could change computing forever. Join this channel to get access to perks:...

Is 3I/ATLAS an Alien Artifact?

by | Sep 23, 2025

3I/ATLAS is only the third interstellar object we’ve ever seen — but could it really be an alien artifact, or just another comet with unusual traits? Watch my exclusive video The Economics of Immortality:...

Life in Methane Oceans: Could Aliens Evolve on Titan-like Worlds?

by | Sep 20, 2025

Could life thrive in seas of methane instead of water? We explore Titan-like worlds and the alien ecosystems they might harbor. Watch my exclusive video The Economics of Immortality: https://nebula.tv/videos/isaacarthur-the-economics-of-immortality Get Nebula using my...

Space Habitat Clusters & Conglomerations

by | Sep 18, 2025

Space isn’t just for lonely colonies—it’s for communities. Join us as we imagine constellations of space habitats bound by tethers, trade, and trust, building not just homes in the stars but entire civilizations. Watch my exclusive video The Economics of Immortality:...

Life on Mars? Perseverance’s Sapphire Canyon Discovery

by | Sep 16, 2025

NASA’s Perseverance rover may have found the best hint yet of Martian life — strange minerals in Jezero Crater that could be microbial fingerprints… or just clever geology. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur...