John M. Grunsfeld Quotes
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Growing up in Highland Park, in high school, I had some very influential teachers: I had a math teacher who taught calculus that helped me learn to be in love with mathematics; I had a chemistry teacher who inspired us to work what was in the class and to go beyond.
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We're being very careful that we don't send a spacecraft to Mars with the intention of detecting Martian life - and find out that we detected the Earth life that we took with us.
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Here we were, the only seven humans in space, repairing a telescope whose only purpose is to enrich the minds of people on planet Earth and increase our understanding of the workings of the universe. I can think of no better peaceful use of space for all humankind.
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Regardless of what dreams you have, work very hard, play very hard, and have fun.
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Sometimes astronauts feel a little ill or get minor scrapes. I trained as a crew medical officer to do basic treatment.
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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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I see no difference between scientific exploration and human 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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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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The James Webb Space Telescope was specifically designed to see the first stars and galaxies that were formed in the universe. So we're gonna see the snapshot of when stars started. When galaxies started. The very first moments of the universe. And my bet? There's gonna be some big surprises.
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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 thrive with high-performance challenges in front of me.
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Science at NASA is all about exploring the endless frontier of the Earth and space.
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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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Hubble isn't just a satellite; it's about humanity's quest for knowledge.
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There are some things worthy of risking your life for.
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After my spacewalks, I am quite exhilarated but also tired, similar to a workout on Planet Earth.
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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.
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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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The moon's a nice place to visit, but you wouldn't want to live there.
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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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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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Being an astronaut, there are not a lot of things that have really shocked me in my life.
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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.