What is the James-Webb Space Telescope?

At the end of January, a giant telescope, called James-Webb, will start

orbit
To be in orbit means, for a satellite, to turn around a planet or a celestial body.

“>orbit 1.5 million kilometers from us. Remote-controlled from Earth, it was launched into space to study the confines of the Universe. This video tells you what he might discover.

What is the James-Webb Space Telescope?

The size of a tennis court, it is the largest telescope ever sent into space. It was manufactured by the American, Canadian and European space agencies. Its name pays homage to a director of the

NASA
The National Aeronautics and Space Administration is the organization in charge of American aeronautics and space programs.

“> NASA which contributed to the first steps of man on the Moon.

Launched at the end of 2021, the James Webb telescope is 1.5 million kilometers from Earth. At this distance, its ultra-precise instruments are not disturbed by the Sun, the Earth or the

moon
Satellite that revolves around a planet. Here, it is not about the Moon which revolves around the Earth.

“>Moon.

But what will this telescope be used for?

Imagine, if you reach out

toward
In poetry, a verse is a line (a sentence) of a poem, which is found in a stanza. The line rhymes with another phrase in the poem’s stanza. It always begins with a capital letter and is characterized by a fixed number of syllables (between one and twelve).

“>towards the sky at night, your thumbnail hides in reality millions of galaxies. Hubble, the previous télescope spatial, has already made images of thousands of these galaxies. But the James-Webb will be able to see much more, more quickly, and its instruments will allow it to see even further. And, in astronomy, to see far, it is seeing in the past. He can thus observe the first galaxies which were formed more than 13.5 billion years ago.

Even better, it will also examine exoplanets, i.e. planets outside the solar system. He will study them to find out if any resemble Earth and betray signs of extraterrestrial life. Of course, we won’t be able to check right away if they are really inhabited, but it will already be a great step forward!

Norédine Benazdia

Does this topic interest you? If you are subscribed to the weekly 1day1news, find an article on space telescopes in the n° 336, published on December 24, 2021.



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