8 Things You Must Know About James Webb Space Telescope.

1. A JOINT MISSION

First and foremost, the James Webb space Telescope (jwst) is a joint mission of NASA-ESA and CSA space agencies. If you don't know about CSA, this is the Canadian Space Agency. It is being developed as a next generation space telescope. Which will replace the Hubble Space Telescope. It is manufactured by two companies. The first company is Northrop Grumman Corporation, an American global aerospace and defence technology company. The other company is called Ball Aerospace & technologies. This company is an American company known for making spacecraft and their components. The James Webb Space Telescope is being built at a very advanced level. Which will provide many times better Infrared resolution and Sensitivity than the Hubble Space Telescope. This will give us a lot of information about the galaxies that will be formed in the beginning after the birth of the universe. This will revolutionize our knowledge of astronomy and cosmology.𑁋james web space telescope facts

Image source-google | Image by- Kevin Gill

 

2. FGS - NIRISS

What make James Webb Space Telescope most special are the two combined instruments called FGS and NIRISS which are its main components. Let's see how these two devices work. These two instruments are connected to each other, but optically they are very different from each other. Talking about FSG then this is Fine Guidance Sensor. In addition, NIRISS is a near infrared imaging and slitless spectrograph device. Developed by the Canadian Space Agency. With the help of these, the telescope can observe light wavelengths ranging from 0.8 to 5.0 microns. The most important feature of FSG Instrument is that it will be easily locate the guide star and observe the targeted area. And this will cover a fairly large area. NIRISS support, near-infrared imaging and wide-field slitless spectroscopy can be performed significantly better.𑁋james web space telescope facts #2

3. Spacecraft BUS OF JAMES WEBB SPACE TELESCOPE

This bus is the main component of this space telescope. Which is a primary support component for all instruments in a telescope. It will take all its instruments together. The structure of this bus weighs 350 kg. It is made with graphite composite material to make it stronger. This allows the bus to support the telescope's weight of 6.5 tons. The central, computing, memory storage and communication equipment occupy a prominent place in it. The processes and computer code delivery statistics directly from devices to solid state memory cores and radio system which will send the info back to earth and receive commands.𑁋james web space telescope facts #3

4. MAIN GOAL OF JAMES WEBB SPACE TELESCOPE

The main task of the James Webb Space Telescope is to study in depth how the universe was formed after the Big Bang and to find out the light of the first galaxies in the universe. It will also examine the formation of stars and the planetary system. In order to gain more insight into the origin of life. Many years ago a Dyson sphere was estimated to be around the star KIC-8462852 at a distance of fifteen hundred light years from the Earth. Because the star's light was diminishing abnormally. It will also explore the secrets behind the dim light of this star. To find out if there is an advanced alien civilization behind this or for some reason.𑁋james web space telescope facts #4

5. SUN SHIELD OF JAMES WEBB SPACE TELESCOPE

This next generation space telescope is designed to provide infrared surveillance in extremely cold environments. Therefore, it is important that the instruments of the telescope remain below -223 C. So this is a great Sun Shield to help. This is silicon, aluminium-coated Kapton. Which will help keep its mirrors and equipment cool. 

Image source-google | Image by-  NASA's James Webb Space Telescope from Greenbelt, MD, USA https://www.flickr.com/photos/nasawebbtelescope/48937048431/  

This will allow the telescope to perform infrared observations without interruption. It will also protect the telescope from light and heat from the sun, earth and moon. The five layers of the sun shield will help it to do this. Each layer is as thin as a human hair. Its greatest feature is that it can be folded up to twelve times. This allows it to easily fit inside the rocket at launch.𑁋james web space telescope facts #5

6. JWST MIRROR

Everyone knows that the size of JWST Mirror is 6.5 meters. Which is a gold coated Beryllium reflector. It will be able to observe an area six times larger than the Hubble Space Telescope. In it 18 such hexagon mirrors work together as a single mirror. Even so, its mass is only half that of the Hubble Space Telescope. After the launch of this telescope, 1.5 million kilometres away from the Earth's orbit will be taken to Earth-Sun L2 (Lagrange Point). And then it will be powered. While the Hubble Space Telescope is operated from an altitude of only 550 km above the Earth.𑁋james web space telescope facts #6

7. OBSERVATIONS

The James Webb Space Telescope is like a giant time machine that can look back billions of years in time. It can penetrate gas and dust and observe better than the Hubble Space Telescope. In addition, it will be able to capture images in high resolution of very dimmer and cool objects. It will replace the retired infrared Space Telescope "the Spitzer Space Telescope". The mission of the telescope is said to be up to 5 years and the target is to extend this period to 10 years.𑁋james web space telescope facts #7

8. LAUNCH OF JWST

The long-delayed telescope is scheduled to launch in October 2021. It will be launched into space with the help of a rocket named "Ariana 5". The total cost of this mission is more than ten billion dollars. That's why there are so many expectations from this telescope. So hopefully soon we will get answers to many questions related to the existence of this huge cosmos.𑁋james web space telescope facts #8

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