Entries in Black Holes (1)


Two Largest Black Holes in Universe Discovered

File photo. Artist concept of a growing black hole, or quasar, seen at the center of a faraway galaxy. NASA/JPL-Caltech(BERKELEY, Calif.) -- A team of scientists at the University of California at Berkeley has found the two largest black holes known to exist.  Each hole is 10 billion times larger than our sun.

A team of eight led by Chung-Pei Ma, a professor of astronomy at Berkeley, discovered the holes in two of the largest galaxies, 300 million light years away.  The findings were published in an article in the journal Nature.

The previous black hole record-holder is 6 billion times the size of our sun. It was discovered 33 years ago by Wallace Sargent at the California Institute of Technology in galaxy M87.

A black hole is formed by the collapse of a super-size star. It is a region where nothing, not even light, can escape.

Typically, when two galaxies merge, they form a bigger galaxy and their black holes merge to form a bigger black hole.

Ma and her team have data for other galaxies, and in the future plan to analyze the data to find other black holes.

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