Our galaxy’s black hole may have made a huge X-ray flare 205 years ago

The colossal black gap on the centre of the Milky Approach hasn’t all the time been so quiet.

Our galaxy’s supermassive black gap, referred to as Sagittarius A* (Sgr A*), is comparatively inactive now, however observations of the fuel clouds round it trace that it might have launched a robust blast of X-rays about 205 years in the past.

When a black gap places out an X-ray flare, that radiation can bounce off any fuel within the …