Star cluster rockets through space
It’s the first time astronomers have ever detected a cluster of stars moving collectively at such speed
By Christopher Crockett, 08:52 AM March 3, 2014
Astronomers have detected the first massive, compact ball of stars moving as a group at hypervelocity (super-extreme speed). Called a globular cluster, this ball contains hundreds of thousands of stars. And it is moving so fast that it’s sailing out of its host galaxy. That extraordinarily massive galaxy, known as M87, sits 53 million light-years away. (It lies in the direction of the constellation Virgo.)
Nelson Caldwell of the Harvard-Smithsonian Center for Astrophysics, in Cambridge, Mass....
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