DESIGN. Lascar’s eye: the James Webb telescope has arrived – Sciences et Avenir

“Welcome home Webb!” The formula is from NASA Director Bill Nelson: celebrate the arrival of the James Webb Telescope at its destination. He had left Earth aboard an Ariane V rocket on Christmas Day 2021. At 1:48 p.m. Paris time, the “telescope of the century” had separated from the last elements of the rocket. Its honeycomb-shaped golden mirror, now the iconic image of the James Webb Telescope, began to unfold on January 7, 2022. On January 25, 2022, here is the space telescope installed 1.5 million km from us, to Lagrang point 2.

In the crosshairs, the identification of traces of extraterrestrial life

How many emotions after 30 years of development, with the help of several thousand contributors and a budget of 10 billion dollars! However, the scientific journey has, of course, only just begun. Hubble’s successor is expected to be able to precisely analyze the atmosphere of new exoplanets thanks to its infrared detection. And perhaps thus identify traces of extraterrestrial life.

QUALIFICATION. The “L’oeil de Lascar” section can be found every month in the paper edition of Sciences et Avenir – La Recherche. This drawing was published in issue 900, dated February 2022.

The James Webb Telescope also on the Sixth Science podcast

The duration of the mission could be 20 years. The cost to NASA of the James Webb telescope is estimated at 10 billion dollars… “The incredible saga of the James Webb Space Telescope”, is also the 68th episode of the sixth science podcast, 20 minutes and Sciences et Avenir , where our journalists Frank Daninos and Fabrice Nicot answer questions from Romain Gouloumès.

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