John M. Grunsfeld Quotes
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The truth is, every single rocket launch off of planet Earth is risky.
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I think it's really a sign of great American strength that we do invest the money we do in technology, in these hard projects, in NASA.
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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.
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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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The only reason Hubble works is because we have a space shuttle.
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One of the things that happens in space is that there is a fluid shift. You get a lot of extra pressure, and it fills your sinuses, and the horseradish is a miracle worker for cleaning that out.
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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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There's no question that if we stay on planet Earth and never leave, that eventually we'll be wiped out.
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I'm an incurable romantic. But I'm not an adrenaline junkie.
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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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The first thing to know about space food - it is the ambiance; it is the environment. It is not the food.
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Life outside of Earth is probably going to be really hard to find.
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As a young boy growing up on the South Side of Chicago, I was inspired by the nascent space age.
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At the age of six, I declared that I wanted to be an astronaut. My mother thought that was just fine, as it would encourage me to learn science, and besides, there really was no chance I would ever actually become an astronaut.
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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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When I first went to Hubble, as an astronomer and as a scientist, it was a dream come true. And as an astronaut, the Hubble missions are premiere missions because Hubble is so important to science, so important to humanity, that it's just a very special event. But as an astronomer, it was sort of the holy grail of missions.
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Sciences are being unified by the search for life in the universe.
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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'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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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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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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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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There's a perspective that I've gained as an astronaut that I didn't get from my science activities. In my science activities, I learned by the seat of my pants. Spending 17 years as an astronaut, I learned the NASA formalism of systems engineering as if my life depended on it. Literally.
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A deep ocean under the icy crust of Ganymede opens up further exciting possibilities for life beyond Earth.