Science & Futurism with Isaac Arthur cover image

Alien Environments

Science & Futurism with Isaac Arthur

00:00

Galactic Colonization and Tourism

A K2 civilization would be expected to have something like a quadrillion, county-sized space haves. A planet with mountains made of rubies and sapphires is mostly just a lunar minoxigen. We might find natural life on worlds that are pretty weird too. Mars is usually the most popular terraforming candidate for Earth's surface.

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