launch of James Webb, the most powerful telescope ever built

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In Kourou, Guyana, an Ariane 5 rocket headed for space on Saturday, December 25, with the most powerful space telescope ever built on board. It cost more than 10 billion euros and researchers expect a lot.

Ariane 5 completed a historic mission in Kourou, Guyana, on Saturday, December 25. Under his hood, the James Space Telescope Webb. It must revolutionize our knowledge of astronomy and will replace its predecessor: the Hubble Telescope, in orbit for over 30 years. James Webb is designed to do much better.

James Webb will be able to observe in the infrared, the immense clouds of gas and dust, thus revealing entire regions of the universe. Astronomers will be able to see the most distant and oldest stars now extinct, and whose light was emitted more than 13 billion years ago. Americans, Europeans or Canadians, this titanic project brought together more than 10,000 scientists and engineers. Even after take-off, they will still have to wait a month to follow the very complex final deployment of the James on a daily basis. Webb.


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