Why is our galaxy’s black hole blinking at us? - BGR

The Moon revolves around the Earth, Earth revolves around the Sun, and the Sun — along with everything else in our galaxy — revolves around a supermassive black hole that sits at the very center.

Now, researchers using data from the Atacama Large Millimeter/Submillimeter Array (ALMA) telescope operated by the European Southern Observatory in Chile have documented a puzzling phenomenon happening near the location of Sagittarius A*, the location at the heart of the Milky Way believed to be a black hole.

It seems that the supermassive black hole is blinking in our direction.

Hot gasses, dust, and debris form a halo around the black hole known as an accretion disk.