We want to make sure we get living astronauts to the surface of Mars.

- Ellen Stofan -
We want to make sure we
We want to make sure we
We want to make sure we get living astronauts to the surface of Mars.
We want to make sure we
We want to make sure we get living astronauts to the surface of Mars.
We want to make sure we
We want to make sure we get living astronauts to the surface of Mars.
We want to make sure we
We want to make sure we get living astronauts to the surface of Mars.
We want to make sure we
We want to make sure we get living astronauts to the surface of Mars.
We want to make sure we
We want to make sure we
We want to make sure we
We want to make sure we
We want to make sure we
We want to make sure we
Ellen Stofan
Ellen Stofan

American - Scientist Born: February 24, 1961

With the author

One of the big things about

Ellen Stofan

Mars missions will require up to

Ellen Stofan

To avoid congestion, I get up

Ellen Stofan

You see countries like India really

Ellen Stofan

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I had stories that needed more

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The only reason Hubble works is

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