John M. Grunsfeld Quotes
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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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I got lucky and got assigned to Hubble.
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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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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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Asteroid detection, tracking, and defense of our planet is something that NASA, its interagency partners, and the global community take very seriously.
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Hubble showed us the marvel and majesty of stars being born.
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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 isn't just a satellite; it's about humanity's quest for knowledge.
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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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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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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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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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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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I thrive with high-performance challenges in front of me.
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We need to move off the planet. And Mars is the next best place.
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Science at NASA is all about exploring the endless frontier of the Earth and space.
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I see no difference between scientific exploration and human exploration.
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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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The moon's a nice place to visit, but you wouldn't want to live there.
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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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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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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.