James Webb Space Telescope uncovers secret supermassive black holes that escape traditional detection

image via Space.com

February 11, 2026, 2:00 PM

• •LLAGN, or "quiet" black holes, still significantly influence their galactic environments.
• •JWST's infrared observations provide unprecedented insight into LLAGN's impact on star formation and galactic evolution.
• •These black holes eject material, energize gas, and create unusually warm molecular hydrogen.
• •The research emphasizes the active role of black holes in shaping galaxies, even when not at full power.

New research, using the James Webb Space Telescope, reveals that even "quiet" supermassive black holes (Low-Luminosity Active Galactic Nuclei, or LLAGN) profoundly shape the galaxies they reside in. These galactic engines, though less active, influence star formation, galactic gas distribution, and overall galaxy evolution. Scientists are deciphering the unique infrared "language" of these LLAGN by analyzing emission lines to understand their impact. The study highlights the active role of these black holes, even in their quieter moments, and opens new avenues for understanding galactic evolution.

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