Hubble Finds Dark Matter

By Colleen Barry,  Newser Staff
Posted May 15, 2007 8:00 AM CDT
Hubble Finds Dark Matter
This photo supplied by NASA-ESA on Tuesday, May 15,2007, shows a ring of what NASA says is dark matter, which measures 2.6 million light-years across, which was found in the cluster ZwCl0024 1652, located 5 billion light-years from Earth. An international team of astronomers using the Hubble Space Telescope...   (Associated Press)

(Newser) – Astronomers have discovered a ring of dark matter in a galaxy cluster about 5 billion light years away. The Hubble Telescope turned up an anomaly in the way stars in the area appear, which researchers think is a distortion caused by the intense gravity of the galactic "glue" holding the cluster together.

Scientists have long guessed that a super-dense, invisible substance creates most of the gravity in the universe, and this discovery could be major progress toward confirming that theory. "Nature is doing an experiment for us that we can't do in the lab, and it agrees with our theoretical models," said one astronomer. (Read more Hubble stories.)

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