We're not going to get humans to Mars until at least the mid-2030s, and the world is going to change by then.
From Ellen Stofan
With the mission to Mars, the whole world wants to get involved. So we actually have 13 different space agencies from around the world working on the global exploration road map.
Every time I give a talk, I ask the audience - especially if it's kids - how many want to go to Mars. At least half raise their hands. I don't think there's going to be any shortage of volunteers.
To unambiguously settle the questions of whether there was life on Mars, it will take scientists down on the surface.
We want to make sure we get living astronauts to the surface of Mars.
You see countries like India really investing in their space program because they see it as inspirational and good for their economy.
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