Cloud-9 located approximately 16 million light-years from Earth. Magenta represents VLA radio data detecting hydrogen gas; the dashed circle marks where Hubble's Advanced Camera for Surveys confirmed the absence of stars, proving this is a starless gas cloud dominated by dark matter rather than a dim dwarf galaxy. Visible objects are background galaxies.

Cloud-9: The Failed Galaxy That Proves Dark Matter Theory Right

Science and Technology /

Dr. Alejandro Benitez-Llambay, principal investigator of the Cloud-9 discovery. Image credit: Dr. Alejandro Benitez-Llambay How Hubble’s dark matter-dominated gas cloud offers a rare window into cosmic structure In the vast cosmic tapestry where galaxies blaze with the light of billions of stars, astronomers have discovered something profoundly different: a starless ghost. Known as Cloud-9, this […]

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