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, Written & Narrated by: Isaac Arthur
Graphics by: Jeremy Jozwik, Ken York, Udo Schroeter
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator