Black Hole in Milky Way Wakes Up After 26 Years (Video)

Astronomers have been observing the recent activity of V404 Cygni, a system consisting of a black hole and companion star, which had been dormant for the past 26 years. (AOL Screenshot)
Astronomers have been observing the recent activity of V404 Cygni, a system consisting of a black hole and companion star, which had been dormant for the past 26 years. (AOL Screenshot)

In space, a dormant system can reactivate at any time, even after decades of inactivity. One recent example is the reawakening of the V404 Cygni...

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