To celebrate the 100-year Edwin Hubble discovery that Andromeda was a galaxy outside our own, astronomers release the most detailed Andromeda Galaxy image ever.

Centaurus A: NGC 5128 is a galaxy in constellation Centaurus, discovered in 1826 by Scottish astronomer James Dunlop. Messier ...

Have you ever seen the Andromeda galaxy? Go outside after dark this month and look high up in the northeast sky and you’ll find the W-shaped constellation of Cassiopeia. Think of its second V ...

Andromeda? The Andromeda Galaxy, of course! Lyra? Easy – the Ring Nebula. And Perseus? Has to be The Double Cluster, right? Not all constellations have such a claim to fame. There are many ...

It gets its name from the constellation it’s found within the boundaries of—Andromeda. In Greek mythology, Andromeda is the daughter of the king Cepheus and his wife Cassiopeia. Both of those ...

called the Andromeda Nebula (after the constellation in which it was located). It was entry 31 in Charles Messier's 18th century catalog of interesting fuzzy objects, and is thus also called M31 ...

October belongs to Pegasus and the water constellations, which float through the southern sky after nightfall. Reigning supreme high in the south are the Great Square of Pegasus and, stretching from ...

October’s dark and often clear skies are perfect for enjoying the fall constellations. Some of them are fairly dim, but if you like a challenge, grab a star chart and go outside soon after ...

from Earth in the Andromeda constellation. Also known as Messier 31, M31, or NGC 224, it is often referred to as the Great Andromeda Nebula in older texts. The Andromeda Galaxy is the nearest ...

to precisely measure the distance to a fuzzy object in the constellation of Andromeda. He identified a star called V1, a Cepheid variable, which predictably pulsates in brightness over time ...

older texts often called it the Andromeda Nebula) is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda.