James Webb Space Telescope

Pour le deuxième jour consécutif, les passionnés d'espace du monde entier seront suspendus à leur écran.

Astronomy enthusiasts, get ready to be dazzled by four new photos from deep space captured by the $10-billion James Webb Space Telescope.

The planet, which is approximately 1,000 light years away from Earth and does not exist in our solar system, is about the size of Jupiter but with half the mass. Part of the image will consist of light from not too long after the Big Bang. “Just think of what we’re going to learn.” “It’s not an image. Later in the day, at 12:30 p.m. ET, NASA will host a live Q&A with members of the media and a selection of the experts from the agency, as well as representatives of the Canadian Space Agency and European Space Agency, which have made contributions to the telescope and its mission. “You ain’t seen nothing yet,” he added, talking up today’s images.

I am a weather and climate scientist who spent 12 years of my career at NASA Goddard Space Flight Center before joining the faculty at the University of ...

These future scientists or engineers will develop the medicines, computing systems, food and water supply technologies, and unforeseen advances of the future. People will say, “Climate change is about a polar bear and is not happening in their community.” That is so far from the truth. In a previous Forbes piece, I made the case for why climate change is a national emergency given its impacts on our water supply, food productivity, public health, energy, and infrastructure. The official NASA press release writes, “NASA’s James Webb Space Telescope has produced the deepest and sharpest infrared image of the distant universe to date. It is even anticipated that JWST will explore origins of life, planetary systems, and our solar system. Here’s why the James Webb Space Telescope matters to me and you.

La première photo de l'univers prise par le télescope James-Webb, publiée lundi, montre un amas de galaxies tel qu'il existait il y a plus de quatre ...

Il avait fallu plus de dix jours de pose au télescope Hubble pour parvenir à son cliché bien moins précis de cette zone de l’univers. Le plus proche est constitué des points plutôt blancs, tandis que tout ce qui est orangé représente le deuxième ensemble de galaxies", décrit l’astrophysicien. Certaines des formes les plus lointaines apparaissent aussi comme déformées, ce qui est lié à la masse des galaxies SMACS 0723. Mais tout ce qui est visible sur cette première image historique n’est pas à la même distance de la Terre… Loin de là. Tout est, en fait, dans le code couleur. C’est en effet le temps qu’il a fallu à la lumière émise par ces galaxies pour arriver jusqu’aux capteurs du télescope James-Webb, ce qui fait que l’image publiée représente un instantané de cette partie de l’univers à cette époque reculée. Un cliché qui fait figure d'avant-goût pour les images que la Nasa doit dévoiler mardi.

NASA on Tuesday unveiled four new images from its new powerful space telescope, including a foamy blue and orange shot of a dying star.

But Webb's sheer power, distant location off Earth and use of the infrared light spectrum showed them in new light. Though aspects of WASP-96 b were known, Webb data adds more detail to existing measurements, NASA said. Stephan's Quintet was first seen 225 years ago in the constellation Pegasus.

Among the newly released images are breathtaking views of a distant galaxy group called Stephan's Quintet that was discovered in 1877.

Researchers have said that Webb could unlock mysteries from as far back as 100 million years after the Big Bang — observations that could help astronomers understand how the modern universe came to be. As such, the telescope is expected to provide first-of-its-kind infrared views of the universe, and capture some never-before-seen cosmic objects. Scientists have said the observatory, which will be able to see deeper into space and in greater detail than any telescope that has come before it, could revolutionize human understanding of the universe.