US astronauts Suni Williams and Butch Wilmore have revealed their first reactions after learning their week-long test flight was about to turn into a nine-month space odyssey saga.

U.S. Space Force Col. Nick Hague and NASA astronauts Suni Williams and Butch Wilmore discuss details of their day-to-day experiences in space, the possibility of getting to the surface of Mars and their thoughts on extraterrestrial life.

Butch Wilmore and Suni Williams returned to Earth earlier this month after unexpectedly spending nine months on the International Space Station