This galaxy, which was spotted along with another that appeared 450 million years after the Big Bang, is extremely bright and suggests that it came together just 100 million years after the event that sparked the universe 13.8 billion years ago. Both star systems appear in the image as faint orange blobs in the dark of space, and are only visible now because of JWST’s powerful ability to look back in time with its infrared camera. The team, led by the National Institute of Astrophysics in Rome, Italy, said the discovery is like an “unexplored country” of early galaxies that were hidden until now. The tiny orange spot is the most distant starlight ever seen by human eyes. It was formed 350 million years after the big bang 13.8 billion years ago Paola Santini, one of the authors of a paper published in the Astrophysical Journal Letters, said in a statement: “These observations make your head explode.
“This is a whole new chapter in astronomy. It’s like an archaeological dig and suddenly you find a lost city or something you didn’t know about. It’s just shocking.’ While the galaxies are more mature than our Milky Way, observations show that they are much smaller. However, the pair is much brighter, and this could be because it is very massive, with many low-mass stars, like later galaxies, when they formed. Garth Illingworth of the University of California, Santa Cruz, who participated in the study, also suggested that they could be much less massive, consisting of far fewer extremely bright stars, known as Population III stars. This galaxy is extremely bright, suggesting it coalesced just 100 million years after the event that kicked off the universe This idea, however, was only a theory. If true, the stars in the system would be the first stars ever born, burning at blistering temperatures and composed only of primordial hydrogen and helium – before the stars could later cook up heavier elements in their nuclear fusion furnaces. And no human has ever seen such hot, primordial stars in the local universe “We’ve achieved something that’s incredibly exciting,” Illingworth said. “These galaxies should have started to come together perhaps only 100 million years after the Big Bang. No one expected that the dark ages would have ended so soon.’ Current Webb distance estimates for these two galaxies are based on measuring their infrared colors. Ultimately, subsequent spectroscopy measurements showing how light has been stretched in the expanding universe will provide independent verification of these measurements of the cosmic criterion. Pascal Oesch at the University of Geneva in Switzerland and author of the paper said in a statement: “While the distances of these early sources have yet to be confirmed by spectroscopy, their extreme brightness is a real puzzle, challenging our understanding of the formation galaxies. ‘ JWST also spotted another galaxy in the area. This formed 450 million years after the Big Bang The team, led by the National Institute of Astrophysics in Rome, Italy, said the discovery is like an “unexplored country” of early galaxies that were hidden until now Like all previous ones, the discovery was made possible with JWST’s Infrared Camera (NIRCam). NIRCam is a first-of-its-kind camera that allows JWST to detect cosmic features missed by previous telescopes. That’s because it’s designed to receive near-infrared and mid-infrared wavelengths, which is light beyond the red end of the spectrum. This technology is “key to observing the first galaxies that formed after the Big Bang and to achieving all of the telescope’s science goals,” Alison Nordt, director of space science and instrumentation at Lockheed Martin, which designed and built the telescope, said in an earlier statement. built the technology. NIRCam revealed another never-before-seen cosmic wonder in an image released Wednesday — the fiery beginnings of a star, also known as a protostar. NIRCam revealed another never-before-seen cosmic wonder in an image released Wednesday — the fiery beginnings of a star, also known as a protostar. The observation reveals an “hourglass” shape that looks like it’s burning in the middle of its dark space, which is visible only in infrared light. Using its NIRCam, Webb could penetrate the dark cloud that has enveloped protostars from telescopes in the past and look back in time to see when the young star fed on a cloud of material to grow in size. The most striking features are the blue and orange clouds created as material is ejected away from the protostar and collides with the surrounding matter. “The colors are due to layers of dust between Webb and the clouds,” NASA shared in a statement. “The blue areas are where the dust is finer. The thicker the dust layer, the less blue light can escape, creating orange pockets.’