The End of Astronauts?
Planetary Radio: Space Exploration, Astronomy and Science
00:00
Terraforming Earth, Is It Possible?
CNN's John Defterios spoke with Chris mc kay, an astrobiologist who wants to terraform mars. He says the moral implications of re-terraforming earth are "staggering" But that doesn't mean we don't have a right to go to another planet and make it habitable for humans. And he adds: ' Terraforming earth will be a much smaller challenge'
Transcript
Play full episode
