Image source social media
Image source social media
Washington, December 25: The James Webb Space Telescope is being considered the world's most powerful and the world's New Eye, is about to be launched today and the eyes of the whole world are on NASA today regarding the launch of this telescope. NASA has said that the James Webb Telescope will be launched today on the occasion of Christmas. This telescope of NASA is the world's most powerful space telescope, which is going to make an unprecedented contribution to the exploration of the universe.
Too excited to sleep? We get it.@NASAWebb – the world’s most powerful space telescope – is set to lift off Dec. 25 at 7:20am ET (12:20 UTC). Live NASA TV coverage begins at 6am ET (11:00 UTC): https://t.co/z1RgZwQkWS#UnfoldTheUniverse pic.twitter.com/Y1c1VLraeq— NASA (@NASA) December 25, 2021
Hubble will replace the telescope NASA used to use Hubble Telescope to collect space information till now, and so far the Hubble Telescope has contributed a lot to all the information humans have collected about space. But, the James Webb Space Telescope is many times more powerful than the Hubble Telescope and has cost $10 billion from build to launch. The James Webb Space Telescope is also being called a time machine built by humans on Earth because it is about discovering the origin of the universe. According to NASA, the James Webb Space Telescope will be launched from French Guiana on a European Ariane rocket. NASA Administrator Bill Nelson has called this mission an extraordinary mission.
Get ready for @ESA_Webb, the world’s next generation cosmic observatory!#Webb will see farther into our origins – from the Universe's first galaxies, to the birth of stars and planets, and exoplanets with the potential for life. #WebbSeesFarther #WebbFliesAriane #JWST pic.twitter.com/UYvQifwPCK— ESA Science (@esascience) December 23, 2021
NASA's Extraordinary Mission Bill Nelson said that "a shining example of what we can achieve when we dream big. We've always known this project will be a risky endeavour. But, of course, when you dream big, If you want the reward, you usually have to take a bigger risk." Let us tell you that the launch of the James Webb Space Telescope is a very difficult mission and what is the percentage guarantee about its success, nothing has been said from NASA yet.
Where to get updates from NASA
Before the James Webb Space Telescope can #UnfoldTheUniverse, it has to literally unfold. Find mission updates at:— NASA (@NASA) December 21, 2021
- @NASAWebb (play-by-play)
- https://t.co/sGBPzkchmf (milestones)
- @NASA (livestreams)
- https://t.co/ht9HRe1k1U (major news)
Timeline: https://t.co/aY8ybuWvnW pic.twitter.com/NhMkZiFWH6
Let us know, what is James Webb Space Telescope and understand all the information related to it in very easy language.
Successor to the Hubble telescope
NASA's James Webb Space Telescope is the successor to the world-famous Hubble Space Telescope, which was launched in 1990 and has changed our understanding of the universe to a great extent. NASA has managed to make big discoveries through the Hubble Telescope and now the James Webb Space Telescope will make new revolutionary discoveries in the world of the universe. The Hubble Telescope is now getting old and deteriorating, so now it is going to be replaced by the JWHT (James Webb Space Telescope), which will help astronomers discover some of the earliest galaxies to form in the universe and help us understand that How galaxies like our own Milky Way came into existence. That is, what was their billions of years ago, it will be detected by the James Webb Space Telescope, that is why it is being called 'time machine'.
Structure of the James Webb Space Telescope
The James Webb Space Telescope has a diameter of 6.5 meters, which is much larger than the 2.4-meter mirror of the Hubble Telescope. NASA's James Webb Space Telescope has a gilded glass, which is about 21.32 feet in width, and this mirror is made by joining together 18 hexagon pieces made of beryllium. Each piece of beryllium is plated with 48.2 grams of gold so that it can act as a reflector. NASA's telescope is the unique telescope ever built, which will detect stars in distant galaxies as well as those orbiting other stars within our galaxy and planets that may have the possibility of life. . NASA has said that a new understanding about the universe will be created through this telescope.
Will be installed on 15 lakh km
Unlike the Hubble Telescope, JWST will orbit the Sun. The Hubble Telescope orbits the Earth, whereas, JWST will orbit the Sun from a distance of about 1.5 million km from Earth and will be located near the second Lagrange point (L2). The carefully chosen location of JWST ensures that the telescope is always pointed away from the Sun, which is necessary to carry out ultra-sensitive observations of the universe. However, this also means that, unlike Hubble, JWST cannot be corrected by astronauts, so its launch and deployment is one of the most challenging space missions and leaves no room for error. Along with this, NASA will also be responsible for protecting it from meteorites, comets or asteroids.
What will happen after launch?
Just 30 minutes after launch, the JWST will separate from the Ariane rocket and deploy its solar arrays, which will provide it with the power it needs to continue its journey toward L-2. As JWST continues along its path, the massive Sun shields needed to keep the telescope cool will continue to be deployed, until it is not yet fully opened.
How will JWST photograph?
A week after launch, Sun Shield will begin to fully unfold into the shape of a tennis court. About two weeks after launch, the 6.5-meter diameter primary mirror, which was initially folded to fit inside the Ariane launch vehicle, will pop out. The biggest challenge before NASA will be to set the James Webb Space Telescope at the right angle because how this telescope takes pictures, it will depend on the angle itself. After the launch on December 25, this telescope will photograph for the first time after 40 days.
NASA's powerful time machine
Once fully operational, JWST will begin surveying the universe to answer some of the most fundamental questions surrounding the origins of stars and black holes in galaxies, as well as life on planets. Some of the major science goals to be achieved thanks to JWST include the study of the formation of the galactic structure some 13.5 billion light-years away, at a time when the universe was in its infancy and the first stars were only rising out of darkness, This telescope will also give information about what would have been the situation at that time and how the universe would have been at that time.