Buzz Aldrin’s panel, A Conversation with Buzz Aldrin and Jeff Kluger, was out of this world. Just kidding, I know that was corny but I couldn’t miss the chance.

In a featured session at SXSW, Buzz Aldrin took the stage for a conversation with Jeffrey Kluger, TIME editor-at-large and co-author of Apollo 13, to discuss his plans for creating a permanent human settlement on Mars and to premiere Life VR, Buzz Aldrin’s Cycling Pathways to Mars.

Aldrin is one of only 12 men who can say they have been to the moon. However, Aldrin is not satisfied with his visit to the Moon, but also wants to travel to Mars. Traveling isn’t the only thing on his agenda, Aldrin wants to travel to Mars, build a colony and have people live there. His plan involves sending a spacecraft to the moon first to build a colony so that on the rest of the trips to mars they will have a refueling opportunity. Once that is in place the next step would be to build that colony on Mars. He thinks we will start as an occupation at first and then grow into colonizing it and that could happen within a 20 year span. Aldrin wants to be ready for this in the next two years as it will be the 50th anniversary of walking on the Moon.

“We explore, or we expire,” Buzz Aldrin said.

You read hear more about his plan here, and make sure to check out Aldrin’s Cycling Pathways here.