A Quote by John M. Grunsfeld
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.
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.
The team at the Space Telescope Science Institute has a demonstrated record of meeting the high-performance challenges of operating the Hubble Space Telescope and preparing for the James Webb Space Telescope.
The Hubble Telescope can see the farthest galaxies. The Webb Telescope will see the farthest stars.
The Hubbell space telescope, it's first year up after they fixed it, categorized and counted 500 billion galaxies in any one photograph field of view of dark matter. That's like grains of sand at the beach and you've just got a handful. It's massive amounts. I'm sure that of all of the galaxies, and I'm sure the universe is teeming with life.
You know; when I look at the night sky and I see this enormous splendor of stars and galaxies, I sometimes ask the question, well how many worlds are we talking about? Well do the math, there are about 100 billion galaxies that are in the visible universe and each galaxy in turn contains about 100 billion stars, you multiply and you get about ten billion trillion stars. Well I think it is the height of arrogance to believe that we are alone in the universe, my attitude is that the universe is teaming, teaming with different kinds of life forms
If all the stars and galaxies in the universe today were smoothed out into a uniform sea of atoms, there would only be about one atom in every cubic meter of space.
Dark matter is one of the dominant constituents of the universe, which piled up in certain parts of the universe due to gravity, and in those regions, galaxies were formed. It is the unseen thing that holds the universe together.
We have stars, planets and galaxies in space. There's lots of nothingness out there, but it's really not. There's gas, dust and other bits of matter floating around emptier' areas of the universe, but you can't see it very easily.
If the expansion of the space of the universe is uniform in all directions, an observer located in anyone of the galaxies will see all other galaxies running away from him at velocities proportional to their distances from the observer.
I always think of space-time as being the real substance of space, and the galaxies and the stars just like the foam on the ocean.
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.
Every field of astrophysics - whether it's our local neighborhood of planets, nearby stars and their attendant planets, galaxies, clusters of galaxies, out to the edge of the universe - every field has questions that are awaiting the power of Hubble.
We have all kinds of limitations as human beings. I mean we can't see the whole electromagnetic spectrum, we can't see the very small, we can't see the very far. So we compensate for these short comings with technological scaffoldings. The microscope allows us to extend our vision into the microsphere. The telescope allows us to extend our vision into the macrosphere, the Hubble Space Telescope extends our optic nerve into space, and it allows us to mainline space and time through our optic nerve.
Randomness has an incredibly powerful place in our culture. If you think about it, you can see it driving the algorithms that run our information economy, patterns that make up the traffic of our cities, and on over to the way the stars and galaxies formed.
The universe and the Laws of Physics seem to have been specifically designed for us. If any one of about 40 physical qualities had more than slightly different values, life as we know it could not exist: Either atoms would not be stable, or they wouldn't combine into molecules, or the stars wouldn't form heavier elements, or the universe would collapse before life could develop, and so on...
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