février 4, 2023

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Le télescope spatial Stellar New James Webb de la NASA

Le télescope spatial James Webb de la NASA. Crédit : NASA Goddard Space Flight Center et Northrop Grumman

Après de nombreux revers, 20 ans de développement, un coût énorme de 10 milliards de dollars et un périlleux voyage d’un million de milles (1,5 million de km) dans l’espace, la nouvelle voiture[{ » attribute= » »>James Webb Space Telescope (JWST) finally opened its golden, infrared eye and gave us a glimpse of our universe – and its unfathomable past – in stunning, unprecedented detail. To honor this feat, the journal Science has named JWST’s flight as its 2022 breakthrough of the year.

Unhindered by the Earth’s atmosphere, space telescopes provide an unspoiled view of our surrounding universe. However, unlike its predecessor, the Hubble Space telescope, JWST can capture infrared light, including light emitted from the very first stars and galaxies to wink into existence. Within days of coming online in late June 2022, researchers began discovering thousands of new galaxies more distant and ancient than any previously documented – some perhaps more than 150 million years older than the oldest identified by Hubble. What’s more, the telescopes is capable of collecting enough light from astronomical objects – ranging from birthing stars to exoplanets – to reveal what they are made of and how they are moving through space. This data has already begun to reveal the atmospheric composition of planets hundreds of light-years from Earth in great detail, offering hints as to their ability to potentially support life as we know it.

Nous ne savons pas encore ce que le télescope spatial James Webb va révéler. Aurons-nous des réponses ? Aurons-nous d’autres questions ? Une chose est sûre : notre histoire est une quête sans fin de connaissances. Comme l’a dit Carl Sagan : « On ne peut pas s’en empêcher. » le crédit:[{ » attribute= » »>NASA

Runners-up for the Breakthrough of the Year include the discovery of a massive microbe nearly 5,000 times bigger than many other bacterial cells; the development of a perennial rice variety; new insights into how the Black Death altered the genes of Europeans; an ancient ecosystem reconstructed from 2-million-year-old environmental DNA preserved in Greenland permafrost; advancements in an RSV vaccine; NASA’s successful DART satellite mission; the passing of landmark climate law; rapid development of creative AI; and the identification of the virus that may cause multiple sclerosis.

Now that the Science news and editorial staff have selected the 2022 Breakthrough, a committee of approximately ten individuals – convened by the Science journals’ editor-in-chief, Holden Thorpe – will select up to three winners whose work best exemplifies the related research field to receive the first inaugural Bhaumik Breakthrough of the Year Award. The individual winner or winners will be announced before the end of March.

Webb est le prochain grand observatoire des sciences spatiales après Hubble, conçu pour répondre aux questions en suspens sur l’univers et faire des découvertes révolutionnaires dans tous les domaines de l’astronomie. Webb verra plus loin dans nos origines – de la formation des étoiles et des planètes à la naissance des premières galaxies dans l’univers primitif. Webb est un partenariat international entre la NASA, l’Agence spatiale européenne et l’Agence spatiale canadienne (ASC). Crédit : ESA/ATG medialab

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