How powerful is the Hubble Space Telescope? Is it possible to photograph the universe as it looks?

Of course, the first cosmic image we harvested was brought to us by the Hubble Space Telescope, and so far, the Hubble Space Telescope is 30 years old.

You can take images of the smallest pieces of dark matter, and you can take pictures of the universe.

In the past 30 years, the Hubble telescope has profoundly changed our understanding of the universe and made great contributions to the research fields of galaxy evolution, stellar physics, and exoplanets. A large part of the space we see is photographed by the Hubble telescope, giving us a taste of the magnificence of the space universe.

First, the Earth's atmosphere reduces the resolution of the telescope. Second, the gravitational pull of the earth causes small deformations when the large lens is manufactured, and the small deformation can greatly reduce the resolution of the telescope. In addition, whether it is the vibration generated by human activities or the vibration generated by the earth's interior, it will affect the telescope's observation of the deep space of the universe.

To find an environment without any interference, the Hubble Space Telescope had to be moved into space.

The Hubble Space Telescope, a space telescope named after the American astronomer Hubble, was launched into space on April 25, 1990 by the American space shuttle Discovery. The main mission of the Hubble Space Telescope is to explore the deep space of the universe, solve the mystery of the origin of the universe, and understand the evolution of the solar system, the Milky Way and other galaxies.

The Hubble Space Telescope cost $2.1 billion and spanned more than 40 years from initial conception and design to completion. In fact, there are many high-quality astronomical telescopes on the earth, so why did Refino have to spend so much energy and financial resources to send an astronomical telescope to space?

We know that the objects in deep space are very, very far away from the Earth, so they can only be observed with large telescopes with high resolution. How high should the resolution be? If you can see a dime coin 10 kilometers away!

However, on the surface of the earth, no matter how well the telescope itself is made, it is difficult to meet this Chachai spring requirement.

First of all, there is a "nasty" atmosphere on the surface of the Earth. It not only blocks all ultraviolet rays with wavelengths below microns from the earth, but also produces a blurring effect, making it difficult for the resolution of even the best large telescopes to approach the so-called optical diffraction limit. Placing the same large telescope in a vacuum can increase the resolution by a factor of 10.

Secondly, there is a "nasty" gravitational pull on Earth. Large telescopes require huge optical lenses, and the gravitational pull of the Earth causes small deformations when the large lenses are manufactured, and small deformations can greatly reduce the resolution of the telescope. When the Hubble Space Telescope was first launched, it was unusable because the edges of the telescope's primary mirror had been worn out by an extra 2 microns (about 1,50 of a hair's length) during ground processing.

As a result, the "Endeavour" space shuttle could only go to space and send astronauts to "wear" "glasses" called "optical correction replacement boxes" on the Hubble space telescope, so that "Hubble's" "vision is normal."

And then there's the "nasty" vibration. Whether it is the vibration generated by human activities or the vibration generated by the earth's interior, it will affect the telescope's observation of the deep space of the universe.

If you want to find an environment that is "isolated" without any distractions, then you have to move the Hubble Space Telescope into space.

The Hubble telescope is a ray telescope that discovers cosmic objects by emitting rays into deep space, and in galaxies 13.4 billion light-years away, they were discovered by the sound of rays coming back.

The Hubble telescope operates at an altitude of 559 kilometers from Earth, so it avoids interference from the atmosphere and the ozone layer, and has a resolution more than 10 times higher than that of ground-based telescopes. The operating frequency of the Hubble telescope is mainly visible light, extending to near-infrared and near-ultraviolet light. He is 30 years old.

Since he took off, he has brought us abundant gifts and sent us many precious astronomical images.

The Hubble telescope has a relatively large aperture and a strong ability to gather light, and the Hubble telescope has a very long time and can find very weak light, so you can find distant galaxies in the depths of the universe.

In space, there is no interference from air and other light, the Hubble telescope can take pictures of a predetermined area for a long time, so it can see far away, claiming to be able to see the depths of the universe.