Tag: James Webb Space Telescope

A cosmic coincidence has led to one of the most amazing images ever captured by NASA’s James Webb Space Telescope (JWST). The dramatic outflow from a newborn star, known as Herbig-Haro 49/50 (HH 49/50), just so happened to align perfectly with a distant spiral galaxy, creating this mesmerizing celestial scene. Herbig-Haro objects are glowing clouds of gas and dust shaped by newborn stars or protostars. They form when jets of charged particles, ejected from young stars at immense speeds, slam into surrounding material, creating brilliant, ever-changing patterns in the sky.…

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A huge bipolar outflow of gas and dust, grown from the tumultuous birth of a double-star system, has formed a cosmic hourglass — and the James Webb Space Telescope imaged the scene in splendiferous detail. Referred to as Lynds 483, or LBN 483,, this nebulous outflow is located about 650 light years away. It provides an ideal opportunity for the James Webb Space Telescope to learn more about the process of star formation. (Beverly Lynds was an astronomer who catalogued both bright nebulas – BN – and dark nebulas –…

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The spaces between stars in our galaxy are enigmatic realms filled with vast, diffuse clouds of gas and dust. These clouds tend to remain invisible — but the James Webb Space Telescope (JWST) has managed to capture one in a rare moment when it was lit up. Peering at a dusty pocket of our galaxy about 11,000 light-years away in the constellation Cassiopeia, the James Webb Space Telescope’s powerful infrared eyes watched as light from a centuries-old supernova illuminated interstellar material, warming it and causing it to glow. “This is…

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The universe of United States postage stamps featuring James Webb Space Telescope (JWST) imagery is set to expand again in 2025. The U.S. Postal Service (USPS) on Monday (Dec. 16) revealed that its upcoming Priority Mail and Priority Mail Express flat rate stamps will feature two deep space vistas captured by the Webb observatory. Scheduled for release on Jan. 21, the stamps will be the second set to use JWST photos after the pair issued this year. “USPS celebrates the continued exploration of deep space with an extremely high-definition image…

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At this point, astronomers are used to the James Webb Space Telescope pushing the boundaries of astronomy — so it is little surprise that the $10 billion telescope has surpassed itself again.  The James Webb Space Telescope (JWST) — with a little help from the Hubble Space Telescope — may have found a family of so-called “failed star” brown dwarfs in the Milky Way’s satellite galaxy, the Small Magellanic Cloud (SMC). If this is the case, it will be the first time astronomers have spotted such bodies beyond the limits…

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Using the James Webb Space Telescope, astronomers have captured a stunning image of a distant supernova in a galaxy that looks like it’s being stretched like warm taffy. However, the golden smear hiding this gravitationally lensed supernova, which has been nicknamed “supernova Hope,” isn’t just remarkable for its aesthetic value. The supernova, which exploded when the 13.8-billion-year-old universe was just around 3.5 billion years old, tells us something about a huge problem in cosmology called the “Hubble tension.”  The Hubble tension comes from the fact that scientists can’t agree on…

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In a pocket of the universe teeming with galaxies, the James Webb Space Telescope has zeroed in on one blazing so brightly it outshines its stars. The James Webb Space Telescope has spotted the galaxy named GS-NDG-9422 — a realm that existed about one billion years after the Big Bang, and indeed one that may provide the missing link of galaxy evolution between the universe’s first stars and well-structured galaxies. GS-NDG-9422 “will help us understand how the cosmic story began,” Alex Cameron, an observational astronomer at the University of Oxford…

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Astronomers often have more questions than answers about the universe — and the universe, in turn, has asked its own question. Quite literally. Last year, the James Webb Space Telescope fortuitously spotted the unmistakable shape of a question mark across the sky. The uncanny feature was captured lurking at the bottom of an image of a pair of forming stars in the Vela constellation roughly 1,470 light-years from Earth. The picture soon went viral on social media sites, prompting a myriad of guesses of its nature, from a sign of…

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It would appear that James Webb Space Telescope observations of 10 nearby galaxies suggests the Hubble tension — which is a puzzling discrepancy in measurements regarding the rate of the expansion of the universe — may not be real after all. The James Webb Space Telescope‘s observations put the average value of the Hubble constant (H0), key in determining the rate at which the universe is expanding, at 69.96 kilometers per second per megaparsec. This is indeed consistent with predictions stemming from the standard model of cosmology, which should sound…

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Using the James Webb Space Telescope (JWST), astronomers discovered that Ariel, a moon of Uranus, could be hiding in a buried liquid water ocean.  The discovery could supply an answer to a mystery surrounding this Uranian moon that has perplexed scientists: the fact Ariel’s surface is covered with a significant amount of carbon dioxide ice. This is puzzling because at the distance Uranus and its moons exist from the sun, 20 times further out from the sun than Earth, carbon dioxide turns to gas and is lost to space. This…

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