A few days before the launch of the James-Webb Space Telescope, Futura invites you to return to the five highlights or events that stopped the design of the new ESA and NASA device.
Start From the Kourou site in Guyana. The James Webb Space Telescope (JWST), indicated as heir , Even real For records: Massive budget, decades of extended design, many delays in its arrival … Look back at five key facts that have built the reputation of one of the most ambitious projects of the last 30 years.Despite another postponement announced by ESA and NASA on December 14th, it is fast approaching. The new flag of space observation, must depart
1. A project developed in 25 years
Twenty-five years . Very quickly, delays will increase, with release dates slipping from 2000 to 2010 and then finally until 2021. NASA’s postponements and the size of the project will quickly blow up the initial budget.The first drafts of the James-Web telescope and its launch in late 2021. JWST’s adventure began in 1996 under another name: Next generation space telescope (New Generation Space Telescope). NASA has decided to launch Low cost, $ 500 million space telescope. The Next generation space telescope Already envisioned as Hubble’s spiritual heir,
2. $ 10 billion telescope
Through James-Web, NASA wants to build an innovative space telescope that is efficient but low cost. Management limits the initial budget to $ 500 million. In 1998, two years after the first drafts Next generation space telescope, Stimulates an increase in the budget allocated to the project. JWST’s design reached $ 1 billion. This number will continue to increase, in line with technological advances and the many delays experienced by Western space agencies. Ultimately, JWST’s development will cost $ 10 billion or 20 times its initial planned outlay.
3. Go 1.5 million kilometers
Following the departure on December 24 (further launched), the James-Web Telescope will travel 29 days to its intended purpose:. The latter is located in the opposite direction, 1.5 million kilometers from Earth , Will provide optimal conditions for JWST to carry out its monitoring mission. Lockrange Point L2 is the best place to observe deep skies, allowing permanent contact and grounding with ground control stations. Thanks for the sunlight.
4. The James-Webb Space Telescope is also huge
Not surprisingly, the dimensions of the JWST are up . The weight of this device is 6,500 , 6.5 meters in diameter with head mirror and Sun visor 22 by 12 meters, the size of a tennis court. In comparison, the diameter of the Hubble main glass is “only” 2.4 meters in diameter. The James-Webb has a scientific application that makes it possible to collect more and more Distant stars and hosting The most accurate celestial objects were observed.
5. JWST will see up to 100 million years after the Big Bang
The James Webb Space Telescope Get the chance to notice . When some visible bodies like planets Can take pictures, the priority targets of the new space telescope The oldest Appeared only 100 million years later 14 billion years ago. Let’s look at the ‘past’ so far And To learn more about the creation of the universe, first And galaxy systems. To date, Hubble’s joint observation and Allowed to return to a galaxy born 400 million years after the Big Bang.
The James-Web telescope will be launched on December 24, 2021 at 1:20 pm on PST.