1/17/2024 0 Comments Big telescope in space![]() The researchers then used spectroscopy to measure how far away the galaxy was, in addition to some of its physical and chemical properties. A galaxy cluster lens caused this small background galaxy to appear 20 times brighter than it would if the cluster were not magnifying its light. The researchers were able to find and study this new, tiny galaxy because of a phenomenon called gravitational lensing-where mass, such as that in a galaxy or galaxy cluster, bends and magnifies light. The James Webb telescope can observe a wide enough field to image an entire galaxy cluster at once. ![]() The galaxy’s volume is roughly a millionth of the Milky Way’s, but we can see that it’s still forming the same numbers of stars each year.” “Here, we’re able to see most of the way back to the Big Bang, and we've never looked at galaxies when the universe was this young in this level of detail. “This galaxy is far beyond the reach of all telescopes except the James Webb, and these first-of-their-kind observations of the distant galaxy are spectacular,” said Patrick Kelly, senior author of the paper and an assistant professor in the University of Minnesota School of Physics and Astronomy. The University of Minnesota researchers were one of the first teams to study a distant galaxy using the James Webb Space Telescope, and their findings will be among the first ever published. The paper is published in Science, one of the world's top peer-reviewed academic journals. The galaxy is one of the smallest ever discovered at this distance-around 500 million years after the Big Bang-and could help astronomers learn more about galaxies that were present shortly after the Universe came into existence. PAUL ()-Using first-of-their-kind observations from the James Webb Space Telescope, a University of Minnesota Twin Cities-led team looked more than 13 billion years into the past to discover a unique, minuscule galaxy that generated new stars at an extremely high rate for its size. Galaxy is the smallest ever discovered at this distance-around 500 million years after the Big Bang
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