Our galaxy’s black hole may have emitted a massive X-ray flash 205 years ago.

An image of an area of space filled with red and blue gas, and scattered stars

The area of house round Sagittarius A*, the supermassive black gap on the heart of our galaxy.

NASA/CXC/Univ. Wisconsin/Y.Ba

The huge black gap on the heart of the Milky Method hasn’t at all times been this quiet.

Our galaxy’s supermassive black gap, named Sagittarius A* (Sgr A*), is at present comparatively dormant, however observations of fuel clouds round it trace that it might have emitted a strong burst of X-rays about 205 years in the past.

When a black gap emits an X-ray flare, this radiation will be mirrored from any fuel within the black gap.

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