During the second episode of The Late Show with Stephen Colbert, things got scientific really quickly with SpaceX and Tesla Motors CEO Elon Musk on the show. Musk and Colbert began talking about Mars and Musk came up with a drastic idea to transform Mars into an earth-like planet.

During the interview, Musk explained that there is a fast way and a slow way to make Mars suddenly warm enough for humans to live on the surface without getting stuck in a dome.

“The fast way is to drop thermonuclear weapons over the poles,” Musk said.

“You’re a supervillain!” Colbert replied.

Last night’s episode also featured the introduction of a segment called “Big Questions With Even Bigger Stars.” The first segment featured Scarlett Johansson, who would definitely rather have hands for feet.

screenshot from Late Show YouTube video