Bonjour à tous et bienvenue dans le ZD Tech, le podcast quotidien de la rédaction de ZDNet. Je m’appelle Clarisse Treilles, et aujourd’hui je vous parle du The James-Webb telescope and the science program qu’il suissete, à la pouroiseau du Big Bang.
If you have recently come across images of space à couper le souffle, you have probably come to see the fruit of the work of the James-Webb telescope.
Launched less than a year ago, it managed to capture with incredible precision the pillars of creation, 27 years after the first cliché given by its predecessor, the Hubble telescope.
Situés à 6,500 années-lumières de notre bonne vieille Terre, dans la nébuleuse de l’Aigle, les piliers de la creation illustrent des étoiles scintillantes qui se form dans des nuages dense de gas et de poussières.
Infrared telescope
Si cette image come tout droit des profondeurs de l’Univers a été wident partagée sur la toile, elle réveille des progrès immenses réalisées en imagerye spatiale.
Concretely, le téléscope James-Webb watch le monde à des longueurs d’onde infrarouge. This scientific discovery allows us to consider more deeply in space to see the first stars and galaxies of the universe that were formed after the Big Bang.
The infrared light also makes visible the stars and planetary systems that form inside dust clouds and that would otherwise be opaque.
By comparison, the Hubble telescope operates in the amount of long-lasting ultraviolet radiation, and the technology can be adapted to observe objects in the head.
An expensive project
The objective of James-Webb is to help scientists to research the first galaxies formed after the reaction of the universe and to study the evolution of these galaxies. The new view of the pillars will help researchers to know more about the formation of stars thanks to a much more precise breakdown of the newly formed stars and the quantities of gas and dust.
The Webb telescope was designed to operate for a minimum of five years, but the objective is that the global mission lifetime is 10 years. Car la logique est à la renttabilité. The project should cost 9.7 billion dollars over 24 years à la NASA. Oui vous avez bien entendu, 9.7 billion. Quant au développement de l’engin spatial proprement dit, il a coûté around 8.8 milliards de dollars et un montant supplémentaire de 861 million de dollars est prévé pour sutenir cinq années d’exploitation.