James Webb telescope finds 'remarkable' evidence that a black hole plowed through a galaxy, leaving an enormous scar behind

Live ScienceWednesday, October 8, 2025 at 5:02:39 PM
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James Webb telescope finds 'remarkable' evidence that a black hole plowed through a galaxy, leaving an enormous scar behind
Astronomers using the James Webb Space Telescope and ALMA have made a groundbreaking discovery of a superlong and narrow 'galactic contrail' that suggests a black hole has passed through a galaxy, leaving a massive scar. This tail of gas and dust stretches an astonishing 20,000 light-years long but is only 650 light-years wide. This finding is significant as it enhances our understanding of black holes and their impact on galaxy formation and evolution.
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