Hubble isn't just a satellite; it's about humanity's quest for knowledge. — John M. Grunsfeld Copy Share Image
We don't know how many planets we're going to have to examine before we find life, and not finding it on 10… — 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
The Hubble Space Telescope, which was designed for extreme servicing, you know, we can fix everything. And the James Webb Space Telescope,… — John M. Grunsfeld Copy Share Image
Are we alone? Many, many people on planet Earth want to know. We are on the cusp of being able to answer… — John M. Grunsfeld Copy Share Image
Because of Hubble and other telescopes, we've now discovered that there are probably planets around every star, or virtually every star. There… — John M. Grunsfeld Copy Share Image
When I grew up as a kid, we didn't know there were any other planets outside of our own solar system. It… — John M. Grunsfeld Copy Share Image
When I first went to Hubble, as an astronomer and as a scientist, it was a dream come true. And as an… — 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 Image
Sciences are being unified by the search for life in the universe. — 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 Earth. We… — John M. Grunsfeld Copy Share Image
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 Image
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 Image
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 Image
I see no difference between scientific exploration and human exploration. — John M. Grunsfeld Copy Share Image
Being an astronaut, there are not a lot of things that have really shocked me in my life. — John M. Grunsfeld Copy Share Image
I kind of feel like I found my cause in life servicing the Hubble Space Telescope. — John M. Grunsfeld Copy Share Image
