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James Webb Space Telescope Reached Operational Temperature! What Now?

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This video is about new James Webb Telescope. It reached operational temperature, after the alignment.
On December 25th of 2021, something incredible happened: the James Webb Telescope was launched.
This event is going to change science and our entire understanding of the world: an observational challenge in astrophysics will be finally solved with the help of this powerful instrument. 
James Webb is going to study the earliest ancient universe, and it will unveil so many different mysteries. Generations of astronomers will work on JWST data reduction and will try to provide us with new knowledge about the universe.
Since its launch in December, the telescope has undergone adjustments and has been getting ready to begin its official mission. At the same time, it was cooling down. The cooling of a telescope is essential to its mission because if the telescope is too hot, unwanted defects can appear on the images it is going to take. Of course, we don’t want that to happen! 
Today we’re going to talk a little bit more about some of the recent updates and discover what the James Webb telescope has been up to during the last period and, more importantly, what is going to happen during summer and by the end of the year. 
The real news about James Webb however is that, over a week ago, the agency announced that the combination of the sun shield and the active cryocooler – that’s responsible for cooling down the mid-infrared instrument, also called MIRI, has officially succeeded. Now the telescope temperature is about 6-7 kelvin. This is its operational temperature.
6 Kelvin is an extremely low temperature, so close to the absolute zero, the ideal case for a telescope not affected by instrumental heating. 
In short term, now the telescope is fully operational and ready to observe. 

But another interesting news came from Gaia.
Gaia is an ambitious mission to chart a three-dimensional map of our Galaxy, the Milky Way, in the process revealing the composition, formation and evolution of the Galaxy. Gaia will provide unprecedented positional and radial velocity measurements with the accuracies needed to produce a stereoscopic and kinematic census of about one billion stars in our Galaxy and throughout the Local Group. This amounts to about 1 per cent of the Galactic stellar population. 
Gaia also orbits around the L2 Lagrangian point, as you can see in this picture, which shows the orbits of the James Webb Space Telescope (in white) and Gaia (in yellow) around L2.

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Credits: Ron Miller, Mark A. Garlick /
Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/ESA/ESO/ Flickr

00:00 Intro
1:21 DWARF II Telescope
3:03 James Webb New Images and Alignment
5:50 First Image Of James Webb
7:50 gaia mission


#insanecuriosity #jameswebbspacetelescope #jameswebbeupdates

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