NASA’s Webb Sheds Light on Galaxy Evolution, Black Holes

Summary
The close proximity of Stephan’s Quintet gives astronomers a ringside seat to galactic mergers and interactions
In an enormous new image, NASA’s James Webb Space Telescope reveals never-before-seen details of the galaxy group called “Stephan’s Quintet.” The close proximity of this group gives astronomers a ringside seat to galactic mergers and interactions. Rarely do scientists see in so much detail how interacting galaxies trigger star formation in each other, and how the gas in these galaxies is being disturbed. Stephan’s Quintet is a fantastic “laboratory” for studying these processes fundamental to all galaxies. The image also shows outflows driven by a supermassive black hole in one of the group’s galaxies in a level of detail never seen before. Tight galaxy groups like this may have been more common in the early universe when superheated, infalling material may have fueled very energetic black holes.
Full Article
Stephan’s Quintet, a visual grouping of five galaxies, is best known for being prominently featured in the holiday classic film, “It’s a Wonderful Life.” Today, NASA’s James Webb Space Telescope reveals Stephan’s Quintet in a new light. This enormous mosaic is Webb’s largest image to date, covering about one-fifth of the Moon’s diameter. It contains over 150 million pixels and is constructed from almost 1,000 separate image files. The information from Webb provides new insights into how galactic interactions may have driven galaxy evolution in the ...Visit NASA Science to view the full news release including article text and associated Webb imagery, graphics, scientific visualizations, videos, captions, text descriptions, and other information.
News releases highlighting the discoveries of NASA’s James Webb Space Telescope are produced for NASA by the Space Telescope Science Institute (STScI) in Baltimore, Maryland, under NASA Contract NAS5-03127. News release content is developed by the News Team in STScI’s Office of Public Outreach.
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