Webber telescope is better than Hubble 100 times! You will understand when you see Weber's first ultra-clear photo.

"What we see is the highest resolution infrared image ever taken from space. You think it is a pixel in the picture, but its resolution is very high, which exceeds all our expectations. The performance of james webb telescope is better than expected. Although this is only an image in the debugging stage, it is not the final high-quality image. But obviously the images taken by the Webb telescope are much better than we thought, and we are very excited. "

Dr Scott acton, one of the designers of James Webb Space Telescope, has a trembling voice and is excited. He is a scientist of wavefront sensing and control. What excites the whole team of scientists is the star image of 2MASJ17554042+6551277 taken by Weber.

We often hear that the James Webb space telescope is 100 times stronger than the Hubble telescope. What is his strength? Is the cost of $654.38+00 billion worth it?

On March 1 1, Webb team completed the debugging of the telescope on the 4th. Coarse phase adjustment and 5th gear. Fine orientation stage. Why are the two stages of debugging completed together?

There are three rounds of coarse and fine phasing calibration, and each round is coarse before fine, so the calibration of the two stages is completed together. In the debugging stage, all the optical parameters of Weber reached or exceeded expectations, and no pollution or blockage was found in Weber's optical path.

This newly released image of a star from 2000 light years away is incredible! Although this is only an aligned and calibrated evaluation image, scientists are very excited. The final debugging of the Webb telescope has not been completed, but its powerful observation ability still surprises us. The brightness of this bright star is about 16 times that of the sun, which is a clear calibration target. In order to be more suitable for human eyes, scientists used red filters.

Although this star is the protagonist, Weber's instrument is very sensitive, and many stars, galaxies or quasars in the background are observed at the same time.

They are bright and dark, some are spiral, oval, and some are dotted, which is quite similar to Hubble's ultra-deep space and extremely deep space.

Hubble's ultra-deep space is accumulated from the exposure data of Hubble telescope 1 13 days. This starry sky on the seat of the celestial furnace covers an area of 3 square minutes, which is only one tenth of the total area of the sky 1.27 million, which is only equivalent to the size that we can see with a tack in our hands. But in this small area, there are about 10000 galaxies. The darkest star in the photo is only 30, which means that the telescope only receives one photon from this star every minute.

Hubble deep space is a small area located in the center of Hubble ultra-deep space image of Canolla constellation, accounting for about one third of the total area of the sky, and it is the farthest place in the universe seen by visible light images at present. The exposure time for shooting this image reached 2 million seconds. The brightness of the darkest galaxy in the image is even only one tenth of the lower limit of the brightness that can be distinguished by the naked eye. Hubble ultra-deep space image adds 5500 images of galaxies in the deepest part of the universe to Hubble ultra-deep space image. We can think about it, how many stars are there in the whole sky above us? Hubble's ultra-deep space and ultra-deep space images are milestones in the history of human astronomy. However, this time Weber only aimed at debugging and correcting the distance, but he also took a similar effect. No wonder scientists are happy.

The design sensitivity of the Webb telescope is at least 100 times that of Hubble, so it only needs to expose a certain sky area for a few hours, and the same effect as that of the Hubble telescope can be obtained for dozens or even hundreds of days, so the observation efficiency is also improved by at least 100 times.

The brilliant images taken by Hubble telescope in the past 30 years will not appear until Weber is fully put into use in the later period. In the next six weeks, the control team will complete the calibration of step 6 and step 7 telescopes, and the official shooting will be around the beginning of May. Then it takes about two months to prepare scientific instruments. The first full-resolution image of the Webb telescope will be released in summer.

Is the cost of $654.38+00 billion worth it?

The galaxies in Hubble deep space images can be traced back to 450 million years after BIGBANG. Further on, Hubble will be powerless. The universe was formed about138 billion years ago. According to the relativistic Doppler effect, if we want to see the further visible light band, we can say that Hubble has exhausted it. We can only find the "first light" after the big bang from the infrared part of the spectrum. With its super-sensitive infrared "eyes", the Webb telescope will reveal many things that we can't see at present. It is expected that it will show us the first galaxies formed in BIGBANG 2.3 billion years later, provide people with more information about how stars and galaxies form, and peek into the atmosphere of the distant world to find traces of life. This will change our understanding of the universe. And I, as a person, can't wait.

I am the black technology around.

The missions of Curiosity, Perseverance and Zhu Rong on Mars will be updated continuously.

And the latest discovery of the universe.