Arrived safely!
The James Webb Space Telescope reached its destination, the second Lagrange point, on Monday afternoon local time. Since it was launched from French Guiana on December 25, local time , it has been traveling through space and the primary mirror . ) And 
Sunshield has been deployed. After nearly a month of flight, I finally arrived at a place to observe space.
The second Lagrange point (L2 point) of the destination is a highly convenient place where you can observe the universe without being obstructed by moving the sun, the earth and the moon behind the telescope. .. The L2 point is also a relatively stable point in orbit around the Sun, so the telescope can minimize the fuel consumption to stay there.
The Webb Telescope is a crucial turning point for astronomy. For 30 years, the Hubble Space Telescope has provided great data for scientists trying to understand the structure of the universe. However, due to aging,
failures have increased, which has hindered observation.
Hubble, the old body who was handling the observation request, is released from the burden thanks to the web. Since these two space telescopes observe different wavelengths , more powerful webs can be observed that Hubble cannot handle. Become.
The Webb Telescope observes the early light of the universe from point L2 and galaxies. Exploring the formation of the exoplanet and the structure of extrasolar planets. The Webb Telescope, which reached point L2 after the last course correction , prepared for scientific observation in a few months of test run. I will continue to do. Originally it was planned to operate for 5 years, but thanks to the highly accurate launch
It may be in operation for 20 years .
The launch schedule was initially postponed to 2007, then to 2014 to 2018, and so on, so it was really long to get here! But if you get billions of years of insight, just a few years of delay would be a trivial price.
Source: JAMES WEBB SPACE TELESCOPE (
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