The James Webb Space Telescope was specifically designed to see the first stars and galaxies that were formed in the universe. So… — John M. Grunsfeld Copy Share Image
I grew up on the south side of Chicago in the 1960s, and I think there was a synchronicity of events that… — John M. Grunsfeld Copy Share Image
Our journey in going beyond our home planet is a human endeavor, and in the greatest tradition of exploration, past, present, and… — John M. Grunsfeld Copy Share Image
The Hubble Space Telescope is more than remarkable. It has answered just so many of those fundamental questions that people have been… — John M. Grunsfeld Copy Share Image
Here we were, the only seven humans in space, repairing a telescope whose only purpose is to enrich the minds of people… — John M. Grunsfeld Copy Share Image
The team at the Space Telescope Science Institute has a demonstrated record of meeting the high-performance challenges of operating the Hubble Space… — John M. Grunsfeld Copy Share Image
The '60s were a remarkable time because several things were happening at once. Men were leaving planet Earth, kids were breaking into… — John M. Grunsfeld Copy Share Image
The most striking thing to me about human space flight and my own personal experience is that I've seen dramatic changes on… — John M. Grunsfeld Copy Share Image
A lot of people get home from work and sink into a good chair, the place in their life where they feel… — John M. Grunsfeld Copy Share Image
I'm absolutely compelled for NASA to send international astronauts to Mars to find out if Mars ever harbored life. — John M. Grunsfeld Copy Share
The most striking thing to me about human space flight and my own personal experience is that I've seen dramatic changes on Earth. We… — John M. Grunsfeld Copy Share
At the age of six, I declared that I wanted to be an astronaut. My mother thought that was just fine, as it would… — John M. Grunsfeld Copy Share
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 Copy Share
Hubble uniquely has been able to look in the atmosphere of a planet orbiting a nearby star and figure out what's in that atmosphere. — John M. Grunsfeld Copy Share
I see no difference between scientific exploration and human exploration. — John M. Grunsfeld Copy Share
Being an astronaut, there are not a lot of things that have really shocked me in my life. — John M. Grunsfeld Copy Share
I kind of feel like I found my cause in life servicing the Hubble Space Telescope. — John M. Grunsfeld Copy Share
One of the things that happens in space is that there is a fluid shift. You get a lot of extra pressure, and it… — John M. Grunsfeld Copy Share
The things I like to do involve a lot of mental focus, a combination of physical and mental challenge. That is what mountain climbing… — John M. Grunsfeld Copy Share