Humans can actually read a landscape, go through a lot of rocks - crack them open, throw them, pick up the next one. Rovers are great - they do amazing science - but it is a lot more tedious process; they go much less far than a human can cover in a day. Ellen Stofan amazecovercrack share on social
'The Martian' may be fiction, but at NASA, we are working to make it a reality. Ellen Stofan fictionmakemartian Change image and share on social
We actually look to the scientific community to kind of come back to NASA and tell us what the priorities should be. And then at NASA, we try to look within our budget and say, 'What can we accommodate, and what are the most important things for the nation?' Ellen Stofan accommodatebackbudget share on social
Water-based life is very much an Earth-centric view, and we can push the envelope on that here in our own solar system. We have the methane seas of Titan. Ellen Stofan basecentricearth Change image and share on social
Mars missions will require up to three years in reduced gravity, so we need to make sure astronauts can not only survive but thrive as they move outward to explore this new world. Ellen Stofan astronautexploregravity Change image and share on social
As a card-carrying space nerd and NASA's chief scientist, I love space movies, from 'Star Trek' to 'Star Wars' to my all-time favorite - 'The Dish', an Australian comedy that celebrates that first moment when Neil Armstrong stepped down onto the surface of our moon. Ellen Stofan armstrongaustraliancard share on social
You see countries like India really investing in their space program because they see it as inspirational and good for their economy. Ellen Stofan countryeconomygood Change image and share on social
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. Ellen Stofan agencyexplorationglobal Change image and share on social
When we go to explore, we do it as a globe. Ellen Stofan exploreglobe Change image and share on social
There's a huge question of whether you really need water for life. Ellen Stofan hugelifequestion Change image and share on social
