A Matter of Fact: NASA Finds Direct Proof of Dark Matter

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A purple haze shows dark matter flanking the Bullet Cluster. Image Credit: X-ray: NASACXCM.Markevitch et al. Optical: NASASTScI MagellanU.ArizonaD.Clowe et al. Lensing Map: NASASTScI ESO WFI MagellanU.ArizonaD.Clowe et al.
A purple haze shows dark matter flanking the "Bullet Cluster." Image Credit: X-ray: NASA/CXC/M.Markevitch et al. Optical: NASA/STScI; Magellan/U.Arizona/D.Clowe et al. Lensing Map: NASA/STScI; ESO WFI; Magellan/U.Arizona/D.Clowe et al.

Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies. The discovery, using NASA's Chandra X-ray Observatory and other telescopes, gives direct evidence for the existence of dark matter.


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