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JWST Reveals Stunning Star Formation in Sagittarius B2 Cloud

9/28/2025

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Summary

Story summary

James Webb Space Telescope (JWST) captured images of Sagittarius B2 molecular cloud, Milky Way’s active star-forming region.
Sagittarius B2 lies about 25,000 light-years from Earth, near the supermassive black hole Sagittarius A*.
Mid-Infrared Instrument (MIRI) and Near-Infrared Camera (NIRCam) on JWST reveal contrasting views of Sagittarius B2. It contains 10% of the center’s material yet forms 50% of its stars.

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Story summary

James Webb Space Telescope (JWST) captured images of Sagittarius B2 molecular cloud, Milky Way’s active star-forming region.
Sagittarius B2 lies about 25,000 light-years from Earth, near the supermassive black hole Sagittarius A*.
Mid-Infrared Instrument (MIRI) and Near-Infrared Camera (NIRCam) on JWST reveal contrasting views of Sagittarius B2. It contains 10% of the center’s material yet forms 50% of its stars.