It’s Never An Earth-like Planet

It’s Never An Earth-like Planet

Astronomers constantly awe us with new exoplanets found around distant stars, but the news often proclaims these worlds Earth-like. Have we found any truly earth-like worlds yet? Colonizing Red Dwarfs: https://youtu.be/Vr5Fap_RTu0 Produced, Written & Narrated by:...

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Near Term Space Colonization

Near Term Space Colonization

Many millennia from now we may have journeyed out to colonize billions and billions of planets in our galaxy, but every journey has to start somewhere. Sign the New Horizons Petition: https://chng.it/DPQ6cSWGk8 Visit our Website: http://www.isaacarthur.net Join...

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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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Computronium

Computronium

Computronium is any type of matter which supports computation or thought, and which a civilization might seek to turn all matter into. Matrioshka Brains: https://youtu.be/Ef-mxjYkllw Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound...

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Birch Planets: Galaxy-Sized Worlds

Birch Planets: Galaxy-Sized Worlds

Birch Planets are enormous hypothetical Megastructures which would have more living area than every planet in our galaxy combined, and are even larger than Dyson Spheres. Mega Earths: https://youtu.be/ioKidcpkZN0 To find out more about megastructures, see the...

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Building Artificial Planets

Building Artificial Planets

We may terraform Mars or Venus one day, but to truly make worlds like Earth, we may need to build them ourselves. Mega Earths: https://youtu.be/ioKidcpkZN0 To find out more about megastructures, see the Megastructure Compendium: https://youtu.be/1xt13dn74wc Produced,...

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BWC Megastructures & Artificial Planets

BWC Megastructures & Artificial Planets

BWC Megastructures are types of hypothetical mega engineering projects, like artificial planets, who scope is vast, but whose practicality is debatable. To find out more about them and other megastructures, see the Megastructure Compendium:...

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Hive Worlds

Hive Worlds

To get started planning a career that works on one of the world’s most pressing problems, sign up now at https://80000hours.org/isaacarthur Science fiction often shows us dark, grimy, dystopian mega-cities in the future, but are such planet-wide cities possible, what...

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Life on Giant Moons

Life on Giant Moons

🌏 Get Exclusive NordVPN deal here ➼ https://nordvpn.com/isaacarthur It’s risk-free with Nord’s 30-day money-back guarantee! ✌ We often contemplate life on alien planets, but might giant moons orbiting distant immense worlds be a better candidate for where...

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Hycean Planets & Ice Worlds

Hycean Planets & Ice Worlds

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. Our telescopes find new exoplanets and reveal deeper details about them everyday, unveiling massive...

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Planetary Terraforming Strategies

Planetary Terraforming Strategies

Check out SFIA's Bonus Content: https://go.nebula.tv/isaacarthur Once we journey out to the stars, we will need to forge new worlds to live on. Choosing the best terraforming techniques for each planet and star system will be vital to surviving on alien worlds. Visit...

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