Intergalactic Voyages

Intergalactic Voyages

Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video on Conformal Cyclic Cosmology: https://nebula.tv/videos/isaacarthur-conformal-cyclic-cosmology Far beyond our Moon and Mars and the other planets is...

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The Dark Forest, Aliens, and a Hostile Galaxy

The Dark Forest, Aliens, and a Hostile Galaxy

Go to https://nordvpn.com/isaacarthur to get a 2-year plan plus a bonus gift on top. It’s risk-free with Nord’s 30-day money-back guarantee! When we look up into the night skies, all we see is absence and silence, but could our galaxy be a dark forest full of hidden...

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Do We Live Inside A Black Hole… And Could We?

Do We Live Inside A Black Hole… And Could We?

Go to https://nordvpn.com/isaacarthur to get a 2-year plan plus 4 additional months with a HUGE discount. It’s risk-free with Nord’s 30-day money-back guarantee! Could our entire Universe be one enormous Black Hole? And is it possible to live inside a black hole?...

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Humanity: Firstborn Space Civilization

Humanity: Firstborn Space Civilization

Go to https://buyraycon.com/isaacarthur for 15% off sitewide! Brought to you by Raycon. As we continue to scan the heavens for signs of intelligent life, we must contemplate what it might mean if we are the first civilization to ever arise. Visit our Website:...

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Civilizations at the End of Time: The Big Rip

Civilizations at the End of Time: The Big Rip

The first 1,000 people to use this link will get a 1 month free trial of Skillshare: https://skl.sh/isaacarthur01221 Current science and cosmology tell us the Universe will slowly die and ebb away countless trillions of trillions of years from now, but another model -...

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The Edge of the Universe

The Edge of the Universe

Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur The Universe is immense. Does it have an edge out beyond the Cosmological Event Horizon? Or in time, before the Big Bang? Or in higher dimensions like Hyperspace? Visit our Website:...

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The Fermi Paradox: Multiverse

The Fermi Paradox: Multiverse

Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ The Fermi Paradox contemplates the weirdness of our galaxy seemingly being devoid of intelligent alien life, but Many Worlds Theory, Multiverses, Parallel Universe, and Alternate Realities may radically...

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Dark Matter Technologies

Dark Matter Technologies

Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur Dark Matter is both the most abundant and most mysterious substance in the Universe, what properties does it have and what technologies might we create to use it in the future? Visit our...

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Oceanic Aliens

Oceanic Aliens

Go to https://buyraycon.com/isaacarthur for 15% off your order! Brought to you by Raycon. Water is one of the most common substances in the Universe, and Earth has far more seas than land and life arose in the ocean first. Planets covered entirely in water may be...

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Civilizations at the Beginning of Time

Civilizations at the Beginning of Time

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. Our Universe is billions of years older than our planet, and we often contemplate alien civilizations that might have arisen...

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The Fermi Paradox: Firstborn

The Fermi Paradox: Firstborn

Start listening with a 30-day Audible trial and your first audiobook plus two Audible Originals are free. Visit http://www.audible.com/isaac or text "isaac" to 500-500. As ancient and vast as the Universe is, it seems like some alien race arose in the galaxy long...

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Postponing the Heat Death of the Universe

Postponing the Heat Death of the Universe

Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ According to modern cosmology, one day all the stars will burn out and the Universe will be full of dead planets, black holes, and other stellar remnants, slowing decaying till entropy brings the Heat...

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