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At the center of the Milky Way, there is a supermassive blackhole with a mass 4,000,000 times bigger than the Sun

The giant black hole in the middle of our galaxy stays pretty quiet most of the time, flaring up only occasionally. But it is due for a burst of activity any day now, as a large cloud of gas and dust continues to spiral toward the heart of the Milky Way.

Exploring Universe: The Pistol Star: A Brilliant Star in Milky Way's Core

Black Hole

Magnetic Field Around the Milky Way's Supermassive Black Hole

NGC 3718 (Arp 214) Distance: 42.4 Million Light Years NGC 3718 and its companion NGC 3729 are physically related members of the Ursa Major galaxy cluster. via Facebook (396×559)

First black hole orbiting a 'spinning' star

Scientists have discovered the first binary system ever known to consist of a black hole and a ‘spinning’ star – or more accurately, a Be-type star. Although predicted by theory, none had previously been found.