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Astronomy Picture of the Day: A Plurality of Singularities at the Galactic Center A recent informal poll found that astronomers don't yet have a good collective noun for a group of black holes, but they need one. More
Astronomy Picture of the Day: Moon Halo over Stone Circle Have you ever seen a halo around the Moon? More
Astronomy Picture of the Day: Galaxy Formation in a Magnetic Universe How did we get here? More
Photographing the Night Sky: Star Trails More
Circles More
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Astronomy Picture of the Day: A Plurality of Singularities at the Galactic Center

A recent informal poll found that astronomers don't yet have a good collective noun for a group of black holes, but they need one.

Have you ever seen a halo around the Moon?

How did we get here?