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Galaxy Sans Dark Matter

Posted by samzenpus on from the nothing-extra dept.

ChromaticDragon writes "Astronomers have crunched some numbers on a galaxy to discover that its rotation can be fully explained by the gravity of the observable matter — in effect, this galaxy seems to lack dark matter. This shouldn't come as a total surprise given that one of the stronger observations of Dark Matter was the Bullet Cluster where supposedly a good deal of Dark Matter and good old fashion regular matter had separated."

2 of 92 comments (clear)

  1. Impact on gravity theories by Dice · · Score: 4, Insightful

    This is another nail in the "dark matter can be solved with a modified theory of gravity" coffin. If we can find a galaxy composed of stars whose observed motion is entirely explained by the mass of those stars and known theories of gravity (Newton, Einstein) that's a serious blow to theories like MOND.

  2. Firehose was NEVER a good idea by dreamchaser · · Score: 2, Insightful

    It's just a way for the editors to abrogate their responsibilities while blaming the users when crappy submissions get posted.