Strange 'blob' circling Milky Way's central black hole is shooting powerful radiation at Earth every 76 minutes 

 Regular high-energy pulses of gamma-ray radiation emerging from around the Milky Way's central black hole may be coming from a blob of matter whipping around at 30% the speed of light. 

https://cdn.mos.cms.futurecdn.net/hmzWccvWi5SLj7TjQ9Pgo.jpeg

https://www.space.com/strange-blob-circling-milky-way-center-shooting-radiation-every-76-minutes