Astronaut on Getting to Mars: It Will Be in the 2030s

TRUMP: "Tell me, Mars, what do you see a timing for actually sending humans to Mars? Is there a schedule and when would you see that happening?"
WHITSON: "I think, as your bill directed, it will be approximately in the 2030s. As I mentioned, we actually are building hardware to test the new heavy launch vehicle and this vehicle will take us further than we’ve ever been away from this planet. Unfortunately, space flight takes a lot of time and money, so getting there will require some international cooperation to get it to be a planet-wide approach in order to make it successful just because it is a very expensive endeavor. But it is so worthwhile doing."