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.

John M. Grunsfeld

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.

John M. Grunsfeld

Life outside of Earth is probably going to be really hard to find.

John M. Grunsfeld

After my spacewalks, I am quite exhilarated but also tired, similar to a workout on Planet Earth.

John M. Grunsfeld

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.

John M. Grunsfeld

The Martian atmosphere is very thin. It's like our atmosphere at 100,000 feet.

John M. Grunsfeld

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.

John M. Grunsfeld

I have had the privilege to be a member of many high-performance teams at NASA, both on and off the planet.

John M. Grunsfeld

I look forward to working with the NASA team to help enable new discoveries in our quest to understand our home planet and unravel the mysteries of the universe.

John M. Grunsfeld

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.

John M. Grunsfeld

I can't imagine anywhere I'd rather be than outside the space shuttle in my space suit next to the Hubble Space Telescope.

John M. Grunsfeld

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.

John M. Grunsfeld

I kind of feel like I found my cause in life servicing the Hubble Space Telescope.

John M. Grunsfeld

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.

John M. Grunsfeld

Once we get beyond Mars, which formed from the same stuff as Earth, the likelihood that life is similar to what we find on this planet is very low.

John M. Grunsfeld

As soon as I could ride a bike... I was always riding over to the Museum of Science and Industry to explore. It's where I first began to develop a fascination with machines and scientific principles.

John M. Grunsfeld

Small bodies in our solar system, like comets and asteroids, help us understand how the solar system formed and provide opportunities to advance exploration.

John M. Grunsfeld

The '60s were a remarkable time because several things were happening at once. Men were leaving planet Earth, kids were breaking into the television age, and I was able to see Neil Armstrong walking on the moon.

John M. Grunsfeld

The biggest honor is to be an astronaut. It's such a tremendous privilege to be able to represent humankind in our quest to explore space.

John M. Grunsfeld

I have dedicated my life to answering the great scientific questions of our time and to the incredible adventure of space exploration.

John M. Grunsfeld

John M. Grunsfeld Quotes

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.

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.

Life outside of Earth is probably going to be really hard to find.

After my spacewalks, I am quite exhilarated but also tired, similar to a workout on Planet Earth.

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.

The Martian atmosphere is very thin. It's like our atmosphere at 100,000 feet.

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.

I have had the privilege to be a member of many high-performance teams at NASA, both on and off the planet.

I look forward to working with the NASA team to help enable new discoveries in our quest to understand our home planet and unravel the mysteries of the universe.

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.

I can't imagine anywhere I'd rather be than outside the space shuttle in my space suit next to the Hubble Space Telescope.

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.

I kind of feel like I found my cause in life servicing the Hubble Space Telescope.

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.

Once we get beyond Mars, which formed from the same stuff as Earth, the likelihood that life is similar to what we find on this planet is very low.

As soon as I could ride a bike... I was always riding over to the Museum of Science and Industry to explore. It's where I first began to develop a fascination with machines and scientific principles.

Small bodies in our solar system, like comets and asteroids, help us understand how the solar system formed and provide opportunities to advance exploration.

The '60s were a remarkable time because several things were happening at once. Men were leaving planet Earth, kids were breaking into the television age, and I was able to see Neil Armstrong walking on the moon.

The biggest honor is to be an astronaut. It's such a tremendous privilege to be able to represent humankind in our quest to explore space.

I have dedicated my life to answering the great scientific questions of our time and to the incredible adventure of space exploration.