A Hubble Space Telescope optical image of our nearest neighbor galaxy, Andromeda (M31), with an inset X-ray image of the active center made with the XMM-Newton observatory. The newly discovered ...

What’s the farthest object you can see with only your eyes? Unless you live under extremely dark skies unspoiled by light pollution, the answer is the Andromeda Galaxy (M31), located some 2.5 million ...

The next clear evening, before the bright moon washes out the fainter stars, take a look for the Andromeda galaxy. Unless you have significant light pollution, you should be able to see it high in the ...

Dots show locations of stars in the spectroscopic survey superimposed on an image of the Andromeda galaxy (M31). Dots are color coded according to their velocity relative to the Milky Way, as measured ...

A massive star roughly 2.5 million light-years away in the Andromeda Galaxy has quietly disappeared, and the best explanation is that it collapsed directly into a black hole without producing a ...

Add Yahoo as a preferred source to see more of our stories on Google. The Andromeda Galaxy, M31, photographed by Stephen Rahn, Macon, GA, on Oct. 18, 2020. The galaxy's two satellites are M32 at left, ...

What was the first galaxy beyond the Milky Way that you ever saw through binoculars? For me, and I suspect for many of you, the answer is the Andromeda Galaxy (M31). It’s a great choice for a few ...

The 2011 Brit Marling sci-fi film Another Earth posited the idea of a mirrored version of Earth entering the Milky Way. The idea seems preposterous, and it probably is–in the film, the “other Earth” ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The Andromeda Galaxy (M31) is coming, and it’s hungry. An ...

Massive stars about eight times more massive than the sun explode as supernovae at the end of their lives. The explosions, which leave behind a black hole or a neutron star, are so energetic they can ...

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