Author

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.

From Ellen Stofan

A lot of my role is advocacy, and as a scientist, you're an advocate, too, because you are coming up with a theory and having to convince your fellow scientists that you're right.

From Ellen Stofan

Communication is an issue where we can improve, and if I can do anything to help, I am happy to.

From Ellen Stofan

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.'

From Ellen Stofan

We're going to understand that there is life on other bodies in the solar system.

From Ellen Stofan

'The Martian' may be fiction, but at NASA, we are working to make it a reality.

From Ellen Stofan

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?

From Ellen Stofan

If you think of the Apollo capsule coming into Earth with a parachute, the Mars atmosphere is just so thin, you've got to find some way of slowing yourself down really rapidly.

From Ellen Stofan

As we visit Mars multiple times, we will build up infrastructure on the surface to expand the capabilities and reach of humans on Mars.

From Ellen Stofan

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?'

From Ellen Stofan

Ellen Stofan

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