The Daily Observer London Desk: Reporter- John Furner
The region of space around Sagittarius A*, the supermassive black hole at the centre of our galaxy
The colossal black hole at the centre of the Milky Way hasn’t always been so quiet.
Our galaxy’s supermassive black hole, called Sagittarius A* (Sgr A*), is relatively inactive now, but observations of the gas clouds around it hint that it may have released a powerful blast of X-rays about 205 years ago.
When a black hole puts out an X-ray flare, that radiation can bounce off any gas in the …
