In the movie, “The Martian,” Matt Damon was a fictional astronaut stranded on Mars. In reality, the head of NASA says astronauts could set foot on the Red Planet within the next twenty years. “We think we’re on the right trajectory to get humans to Mars in the 2030’s,” NASA Administrator Charles Bolden told CNBC’s “On the Money” in an interview this week.

He should know: Prior to assuming NASA’s top job in 2009, Bolden was himself an astronaut for 14 years, commanding two space shuttle missions during that time. The U.S.’s top space official says he’s confident the agency’s “Journey to Mars” goal can be accomplished, building on years of space exploration. “If we were just starting out, I would have doubts,” Bolden explained. “But we’ve been sending precursor missions to Mars for almost 50 years now.” FULL REPORT