Milky Way’s Giant Black Hole Awoke from Slumber 300 Years Ago

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This Chandra image shows our Galaxys center. The location of the black hole known as Sagittarius A or Sgr A for short is arrowed. Credit: NASACXCMITFrederick K. Baganoff et al.
This Chandra image shows our Galaxy's center. The location of the black hole, known as Sagittarius A*, or Sgr A* for short, is arrowed. Credit: NASA/CXC/MIT/Frederick K. Baganoff et al.

Using NASA, Japanese, and European X-ray satellites, a team of Japanese astronomers has discovered that our galaxy’s central black hole let loose a powerful flare three centuries ago.


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