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It comes from this big, huge primary mirror, and that mirror measures 21.3 feet, 6.5 meters in diameter, and it gives it a total collecting area of more than 276 square feet, 25 square meters. In comparison, Hubble's primary mirror is 8 feet, 2.4 meters in diameter, and it has a collecting area of about 60 square feet, 4.5 square meters. And both telescopes can see billions of light years away because they're in space, and beyond that, they have the atmosphere on Earth. If you go outside at night and take a look up in the night sky, very often you'll, if you look up, you'll see that the stars look like they're twinkling scintillations. And that's because the Earth's atmosphere, comprised of hot and cold air and the Earth's are made way, they cause these distortions, these convection curves from all these distortions. And so that's another thing that makes it very difficult for Earth-based telescopes to look through the entire picture. It's like taking a coin and dropping it in a glass of water, giving it a glass of water shape, and then looking down. A coin is almost impossible to get any real definition on at that point. So the James Webb-based telescope is also equipped with infrared light detectors. And they're situated absorb light redirected from its large mirror. They can help identify distant light that Hubble can't see. So Earth's atmosphere causes some of the unique problems for terrestrial telescopes, and that, like from light pollution to atmospheric turbulence, etc., etc. So in space, you don't have that to worry about. You don't have atmosphere there, and you do have dust and debris in space, but not like we do here in the atmosphere. But there's still enough of that that can bother you with some optical systems if you're in space. So the James Webb-based telescope has an advantage point. It's nearly one million miles, 1.5 million kilometers from Earth, and a range point. And range points are just basically places that have the right gravitational balance for satellites to stay stable in orbit. So you get something from the Earth, beyond the Earth, and the Sun, and the tung from the Earth and the Sun, and from a planet farther out is just about to keep these spacecraft in a stable orbit.