American - Astronaut | October 10, 1958 -
All indications are that three and a half billion years ago, Mars looked like Earth. It had lakes. It had rivers. It had river deltas. It had snow-capped peaks and puffy clouds and blue sky. Three and a half billion years ago, it was a happening place. The same time on Earth, that's when life started. So did life start on Mars?
John M. Grunsfeld
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What we do at NASA is inspiring. It's reaching, it's visionary, and it inspires people on Earth to try hard things.
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I think that space exploration as a broad activity is the most important things that humans can do. I've always found it fascinating, interesting, compelling, and I have a drive to go out into space.
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When people left on the Oregon Trail from St. Louis, they knew that only a fraction of them would make it to the West Coast. But they went anyway.
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There is no stronger case for the motivational power of real science than the discoveries that come from the Hubble Space Telescope as it unravels the mysteries of the universe.
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I have dedicated my life to answering the great scientific questions of our time and to the incredible adventure of space exploration.
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I can't imagine anywhere I'd rather be than outside the space shuttle in my space suit next to the Hubble Space Telescope.
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It's pretty amazing to me that we have had a space shuttle program that's lasted for 30 years - for one space shuttle. That's quite an achievement.
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Regardless of what dreams you have, work very hard, play very hard, and have fun.
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Absolutely the most fun thing to do in space and rewarding thing, in many ways, is to look back at planet Earth.
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Hubble has really opened our eyes to what the universe is made of, its structure, and has helped us learn how little we know about the universe.
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I thrive with high-performance challenges in front of me.
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