The United States announced what was taken in the Weibu Space Telescope Cosmic Image?[picture]
Author:Xinhuanet Time:2022.07.13
Xinhua News Agency, Los Angeles, July 11th (Reporter Tan Jingjing) US President Biden announced the first colorful image deep space image taken by James Web space telescope at the White House on the 11th. The US Aerospace Administration said this is the most distant and clearest universe infrared image so far.
This is one of the photos taken by James Web Space Telescope at the Washington White House on July 11. Xinhua News Agency (Photo Conferring in the United States Aerospace)
The United States Aerospace Administration issued a bulletin on the 11th saying that this image was one of the first full -color images taken by the Wabo Space Telescope. The "SMACS 0723" galaxy group displayed in this image contains thousands of galaxies and also contains the weakest celestial bodies observed so far. The size of the starry sky covered in the vast universe covered by the image is equivalent to the people on the ground to open their arms and observe the grain of the above sand.
According to reports, this image was shot by near -infrared cameras equipped by the Wabo Space Telescope and was synthesized by images in different bands.
This is the report site of the James Web Space Telescope photo of the White House in Washington, USA on July 11. Xinhua News Agency (Photo Conferring in the United States Aerospace)
The U.S. Aerospace Administration said that the total quality of the "SMACS 0723" galaxy group enables it to produce a "gravity lens" effect and amplify the farther galaxy behind it. The near -infrared camera of the Webb Space Telescope clearly focuses on these distant galaxies. They have small and weak structures that have never been seen before, including star groups and man -shooting characteristics. With the observation of the oldest galaxy in the universe, researchers will soon start to learn more about the quality, age, history, and ingredients of these galaxies.
The Wubu Space Telescope was jointly studied and developed by the US Astronautics Agency, the European Space Agency and the Canadian Astronautics Agency, and was considered the "successor" of the Hubble Space Telescope. According to the US Space Agency, the Weibu Space Telescope costs $ 10 billion, which is the largest and most functional space telescope built by the agency to date. Its main mirror diameter is 6.5 meters, consisting of 18 hexagonal lenses, with 5 layers of expanded sunshade boards.
The Webb Space Telescope was launched from French Guiyukuru Aerospace Center on December 25, 2021. On January 24 this year, it successfully entered the tracking track around the second Laglang day point around the Ragland system.
The Hubble Space Telescope is mainly observed in visible light and ultraviolet wave bands, and the Weibu Space Telescope is mainly observed in infrared bands. The task target of the Webb Space Telescope includes how the first batch of galaxies in the universe more than 13.5 billion years ago were born, studying all stages of galaxy evolution, and observing the formation of stars and planetary systems.
Popular science: What did the galaxy group in the "one grain of sand" take?
Facing the vast universe, human beings are always curious: how exactly does the universe origin? Is there any extraterrestrial life? James Wabo Space Telescope opened its space journey with this mission. Today, it has taken the most distant and clearest universe infrared images so far.
"If you put a grain of sand on the fingertips far away, this is part of the universe you are seeing -it's just a small point in the universe." The first full -color universe deep space image was taken by Webb Space Telescope. In other words, looking at this cosmic area is equivalent to a grain of sand on our fingertips.
This "one grain of sand" contains a galaxy group. According to the U.S. Aerospace Administration, the image is the "SMACS 0723" galaxy, which contains thousands of galaxies. The image shows about 4.6 billion years ago in the galaxy, because it is about 4.6 billion light years from us, and the light mirror now receives it a long time ago.
Some of the images are light from the "Big Bang of the Universe", which is more than 13 billion years ago. The U.S. Aerospace Administration said that the total quality of the "SMACS 0723" galaxy group enables it to produce a "gravity lens" effect and amplify the farther galaxy behind it. Cai Yan, an associate professor at the Department of Astronomical University of Tsinghua University, said in the Weibu Space Telescope that some of the light it now detected was passed from a particularly far galaxy, such as the light from 13 billion years ago. Captured, and the universe at the time was still in the infantile period, so humans are expected to see the appearance of the cosmic infant through the telescope.
This image allows humans to see this small point in the universe with unprecedented clarity. The near -infrared camera of the Webb Space Telescope clearly focuses on the distant galaxy. The image has a tiny structure that has never been seen before, including the star group and the characteristic characteristics. Harvard Astronomer Dimitar Susserov said that at first glance, this image felt "we have seen this before", but after looking at the details of the image carefully, I found that this is a very beautiful result. wait".
After many postponing, the Web space telescope was launched from French Guiyukuru Space Center on December 25, 2021. It is currently located in the Ragram's Raca point around the second Ragron System, about 1.5 million kilometers from the earth. According to the US Space Agency, the Wabb Space Telescope is the largest and most functional space telescope built by the agency to date. Its main mirror diameter is 6.5 meters, consisting of 18 huge hexagonal mirrors. The sun -shade, the total cost is about $ 10 billion.
The Hubble Space Telescope is mainly observed in visible light and ultraviolet wave bands, and the Waobi Space Telescope Observation wavelength range is 600 nanometer to 28.8 microns, mainly in infrared bands.
What are the advantages of infrared observation? Unlike ultraviolet rays and visible light, infrared rays with long wavelengths can bypass some dust, allowing telescopes to see the celestial body hidden behind the dust. More importantly, infrared observation helps scientists to "see the origin of all things at a closer look." With the continuous expansion of the universe, the ultraviolet rays from early glowing celestial bodies moved and the red end of the visible light spectrum moved, and finally reached the near -ground space in the form of infrared. This phenomenon was called "red movement". Infrared telescope helps to observe related phenomena.
There are four main aspects of the Waibu Space Telescope task: looking for the first batch of galaxies born in the universe; studying all stages of galaxy evolution; observing the formation of stars and planetary systems; measurement of the physics of planetary systems including the planet system of the solar system, Chemical properties, and study the possibility of life in other planet systems.
This image just released is only one of the first full -color images taken by the Webb Space Telescope. The United States Aerospace Administration will also release more images on the 12th, involving a huge gaseous planet outside the solar system, as well as the star clouds that are born and destroyed among them. The observation of the Webb Space Telescope will help researchers understand the quality, age, history, and ingredients of the celestial bodies.
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