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QUICK FACTS
What it’s: Sagittarius B2 molecular cloud
Where it’s: Roughly 26,000 light-years from Earth,, within the constellation Sagittarius
When it was shared: Sept. 24, 2025
But this large star-forming area is shrouded in a thriller: the way it has managed to provide 50% of the celebrities within the area, regardless of containing simply 10% of the galactic heart’s fuel.
Astronomers noticed this super-efficient stellar manufacturing facility utilizing the James Webb Space Telescope (JWST), in the hope of finding some clues about its unusual productivity. This spectacular image is the telescope’s mid-infrared view, captured by JWST’s Mid-Infrared Instrument (MIRI).
In the image, the clumps of mud and fuel within the molecular advanced glow in shades of pink, purple and purple. These clumps are seen surrounded by darkish areas. Dark doesn’t imply that these areas are empty or emit nothing; as a substitute, gentle in these areas is blocked by dense mud that the instrument can’t detect.
In star-forming areas like this one, heat mud and fuel and solely the brightest stars emit within the mid-infrared. This contrasts with the near-infrared image captured concurrently by JWST’s Near-Infrared Camera (NIRCam), which reveals an abundance of stars as a result of stars emit extra strongly within the near-infrared gentle.
In this MIRI picture, the clumps on the precise that seem redder than the remainder of the cloud advanced correspond to one of the chemically advanced areas recognized, as revealed by earlier observations utilizing different telescopes. Astronomers suppose this distinctive area could maintain clues to why Sgr B2 is extra environment friendly at star formation than the remainder of the galactic heart.
Additionally, an in-depth evaluation of the plenty and ages of the celebrities on this stellar manufacturing facility might reveal additional perception into the star-forming mechanisms within the Milky Way’s heart.
For extra elegant area photographs, take a look at our Space Photo of the Week archives.
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