John M. Grunsfeld Quotes
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Are we alone? Many, many people on planet Earth want to know. We are on the cusp of being able to answer that question... because of the investments we're making in space technology.
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A deep ocean under the icy crust of Ganymede opens up further exciting possibilities for life beyond Earth.
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I grew up on the south side of Chicago in the 1960s, and I think there was a synchronicity of events that inspired me to be an astronaut, and, of course, the backdrop is nothing less than Mercury, Gemini, and Apollo. That was a time in our nation where we aspired to great things, and we achieved them.
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Being an astronaut, there are not a lot of things that have really shocked me in my life.
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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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We need to move off the planet. And Mars is the next best place.
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When I grew up on the south side of Chicago, it was kind of a rough neighborhood, and when my parents saw the prospect of my older sister going to middle school, high school, they decided that we would move to the north side of Chicago, Highland Park, and for me, that was a whole new ballgame.
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I thrive with high-performance challenges in front of me.
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The things I like to do involve a lot of mental focus, a combination of physical and mental challenge. That is what mountain climbing is.
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Small bodies in our solar system, like comets and asteroids, help us understand how the solar system formed and provide opportunities to advance exploration.
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Science at NASA is all about exploring the endless frontier of the Earth and space.
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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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When I grew up as a kid, we didn't know there were any other planets outside of our own solar system. It was widely speculated that planet formation was an incredibly rare event and that it's possible that other planets just don't exist in our galaxy, and it's just this special situation where we happen to have planets around our sun.
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There are some things worthy of risking your life for.
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I kind of feel like I found my cause in life servicing the Hubble Space Telescope.
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Hubble isn't just a satellite; it's about humanity's quest for knowledge.
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Only by studying large numbers of people can we figure out, are astronauts dying at a higher rate of cancer, and what types of cancers, than other people?
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Regardless of what dreams you have, work very hard, play very hard, and have fun.
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Hubble showed us the marvel and majesty of stars being born.
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The moon's a nice place to visit, but you wouldn't want to live there.
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Our country... invests a tiny fraction of 1 percent in NASA, and this is what's so amazing to me, is with that small investment, we do so much for the country.
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I got lucky and got assigned to Hubble.
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I have had the privilege to be a member of many high-performance teams at NASA, both on and off the planet.
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We don't know how many planets we're going to have to examine before we find life, and not finding it on 10 or 100 doesn't mean it's not there. This may be very tricky.