ESA title
Gas cloud Sagittarius B2
Agency

Gas cloud Sagittarius B2

14/04/2008 908 views 0 likes 216293 ID

Four X-ray satellites imaged a small region in the gas cloud Sagittarius B2, and saw pockets brighten and fade over the course of nearly 12 years. These light echoes are caused by varying X-ray output from our galaxy’s central black hole.

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XMM-Newton’s view of the Galactic centre – animation
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