This video may not look like much, but it's the most definitive evidence we have that our Milky Way galaxy is orbiting around a seriously massive black hole. Created by a group at UCLA, it shows the orbits of stars around that black hole — and it shows us a little something else, too.
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The wildest ride in the galaxy is found on hypervelocity planets. These worlds got too close to the supermassive black hole at the center of our galaxy, and have been flung away at a twentieth of the speed of light.
A massive gas cloud is on a collision course with the supermassive black hole at the center of the galaxy. As this awesome artist's conception shows, it will be torn completely apart. This is our first chance to watch that happen.
Some star clusters have no business surviving. For instance, there's a tiny cluster right next to our galaxy's supermassive black hole, which should be ripped apart by its intense gravity. But there's more to this cluster than meets the eye.
We didn't yet have the technology to notice, but Sagittarius A*, the supermassive black hole at the center of our galaxy, threw one hell of a tantrum a few hundred years ago. It's the only explanation for mysterious x-ray anomalies.
Look at this new picture of Sagittarius A, the black hole at the center of our galaxy: It's alive with starlight. Sagittarius A eats much less stellar matter than a normal black hole, and this image provides a clue why.
The center of our galaxy shines in greater detail than ever before, in this new composite image from NASA's Chandra X-Ray Observatory. (Click to enlarge.) The whole gamut of stellar evolution is here, from bright young stars to black holes.