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
One of the big things about space exploration is that it is as expensive as it is complicated, and you need all the countries of the world to help if you want to accomplish big goals. Ellen Stofan accomplishbigcomplicate 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
My key aim is to get man on the surface of Mars by the mid-2030s. Ellen Stofan 2030saimkey 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
The public has an incredible capacity for appreciating the wonder of our planet, our solar system, our universe. Ellen Stofan appreciatecapacityincredible Change image and share on social