John M. Grunsfeld Quotes
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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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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 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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Hubble showed us the marvel and majesty of stars being born.
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I thrive with high-performance challenges in front of me.
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Hubble isn't just a satellite; it's about humanity's quest for knowledge.
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Science at NASA is all about exploring the endless frontier of the Earth and space.
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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 see no difference between scientific exploration and human exploration.
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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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After my spacewalks, I am quite exhilarated but also tired, similar to a workout on Planet 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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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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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 need to move off the planet. And Mars is the next best place.
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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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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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The Hubble Space Telescope is more than remarkable. It has answered just so many of those fundamental questions that people have been asking about the cosmos since people were able to ask questions.
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Regardless of what dreams you have, work very hard, play very hard, and have fun.
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The Hubble Space Telescope, which was designed for extreme servicing, you know, we can fix everything. And the James Webb Space Telescope, where we can fix nothing. It has to work the first time. And it's a very complicated telescope.
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If I could live in space, I would definitely do that.
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There are some things worthy of risking your life for.
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The moon's a nice place to visit, but you wouldn't want to live there.