The Fermi Paradox: The Cronus Scenarios

The Fermi Paradox: The Cronus Scenarios

Go to https://brilliant.org/IsaacArthur/ to get a 30-day free trial and 20% off their annual subscription. We often worry that the reason we hear nothing in our search for extraterrestrial intelligence is that travel to other stars is just too hard, but what if a...

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What is a ‘Hubble Volume’?

What is a ‘Hubble Volume’?

Terms like Universe, Observable Universe, and Hubble Volume often get used interchangeably and explained in very technical terms, but simply put, what are they and how do they differ?

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Ancient Ghost Universes & Conformal Cyclic Cosmology

Ancient Ghost Universes & Conformal Cyclic Cosmology

Try Cell to Singularity, free to play: https://l.linklyhq.com/l/1uNoF In a future so distant that all has decayed to nothingness and time itself ceases to exist, might this eternal moment of oblivion bring on a fiery resurrection to all of space and time? Visit our...

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How Many Stars & Galaxies Could We Colonize?

How Many Stars & Galaxies Could We Colonize?

The Universe is vast, and even voyages to neighboring stars may decades under known science, so how far can humanity colonize out into our galaxy or beyond? Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound...

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The Last Planet

The Last Planet

Go to https://buyraycon.com/isaacarthur for 15% off your order! Brought to you by Raycon. Eons from now the last stars will be born, living trillions of years before they too fade out, and in the gathering darkness will come the final sunset on the last planet. Visit...

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Ammonia-Based Lifeforms

Ammonia-Based Lifeforms

Get a free bag of fresh coffee with any Trade subscription at https://www.drinktrade.com/isaacarthur Our search for extraterrestrial life assumes alien life based on water and carbon, but could there be biochemistries based on other substances? NSS Townhall...

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Higher Dimensional Aliens

Higher Dimensional Aliens

Checkout Keysight World Innovate: https://keysig.ht/rX9blU Could there be universes with more than 3 Dimensions? And if so, could life exist there? Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon:...

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Warping Reality

Warping Reality

The goal of science is to understand and master the Universe around us, but could our skill grow so great that we could learn to warp reality itself? Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon:...

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Misconceptions About Space, Time & The Universe

Misconceptions About Space, Time & The Universe

The first 1,000 people to use the link will get a 1 month free trial of Skillshare https://skl.sh/isaacarthur05231 Our Universe is vast, ancient, and mysterious. It's no surprise that in our quest to explore and explain it, many misconceptions have arisen. Visit our...

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The Fermi Paradox: Galactic Habitable Zones

The Fermi Paradox: Galactic Habitable Zones

Go to https://buyraycon.com/isaacarthur for 15% off your order! Brought to you by Raycon. Our galaxy is a dangerous place for life. A vast storm of stars in which new ones are born and die in deadly displays. How much of the galaxy is truly safe for life to emerge in?...

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