Everybody has busy lives, but you can tell people, 'Go outside and look at the night sky. We've been able to demonstrate that every star you see probably has a planet around it.' Ellen Stofan busydemonstratehave Change image and share on social
As we visit Mars multiple times, we will build up infrastructure on the surface to expand the capabilities and reach of humans on Mars. Ellen Stofan buildcapabilityexpand Change image and share on social
So many people I talk to who work in technology, you ask them, 'What got you interested in science?' and those from my generation say, 'The Apollo landings.' Ellen Stofan apollogenerationinterest Change image and share on social
Mars was this water-based planet, and we know there was stable water on the surface for a long time, which is critical for life having a chance to develop. Ellen Stofan basechancecritical Change image and share on social
We're going to understand that there is life on other bodies in the solar system. Ellen Stofan bodylifesolar Change image and share on social
As chief scientist, it's sort of my job to look at bridges between what we do and to see the connections. But when we try to understand how are planets around other stars habitable... to looking back at the Earth - how are the changes that are taking place, how are they going to affect humanity? Ellen Stofan affectbackbridge share on social
We want to make sure we get living astronauts to the surface of Mars. Ellen Stofan astronautlivemake Change image and share on social
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
When you look at Venus and the Earth, they formed at about the same place in the solar system. They're made of about the same materials; they're about the same size. Ellen Stofan earthformmake Change image and share on social
We have to ask, 'How can we break a huge challenge like sending humans to Mars into a series of doable, affordable steps? How can we break that problem down into chunks in order to keep making progress?' Ellen Stofan affordablebreakchallenge share on social