Launch of Ariane 5 with the revolutionary James Webb telescope on board


The rocket takes to the most expensive observatory ever built.

The launch went as planned. This Saturday, December 25 at 1:15 p.m. metropolitan time, the Ariane 5 rocket tore itself from the ground at the base in Kourou, Guyana, with the James Webb telescope on board. If all goes as planned, it will reach its destination within a month in solar orbit, about 1 million kilometers from Earth, about four times farther than the Moon.

This revolutionary instrument, which cost $ 12 billion, is the result of an international collaboration led by NASA to give humanity a first glimpse of the nascent universe, as it existed when the first galaxies came together. trained.

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