A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda ...

The Andromeda Galaxy, also known as M31, is more than just a faint smudge in the night sky; it’s a colossal spiral galaxy, ...

The Andromeda galaxy is the galaxy next door, a very faint, fuzzy thing in the night sky, larger than a full moon. Textbooks ...

For Andromeda, where observations are more difficult, astronomers have still struggled to measure an accurate mass. Our new work takes a new approach to measuring the mass of the Andromeda galaxy.

Astronomers have long believed that our Milky Way will eventually collide with the Andromeda galaxy. A new study suggests that we might escape that fate. The spiral Andromeda galaxy is our closest ...

Astronomers deployed the Hubble Space Telescope over the course of a decade to conduct 600 separate observations to produce ...

Astronomers have long thought that the Milky Way is headed for an inevitable crash with its neighbor, Andromeda. But a new study complicates the story.

The Andromeda galaxy lies just beyond (...OK, about 2.5 million light-years beyond) our galaxy, the Milky Way. For the past hundred years or so, scientists thought these galaxies existed in a long ...

Milky Way's chance of colliding with Andromeda? New study puts odds at 50-50 For this new study, the scientists relied on updated galaxy measurements to factor in the gravitational pull on the ...

Andromeda's satellite galaxy, M32 — a small, compact elliptical galaxy — is thought to be the core of the renegade galaxy that collided with Andromeda.

NASA scientists have detected a massive halo of plasma surrounding the nearby Andromeda galaxy. The halo, a massive orb of influence stretching deep into space, … ...

YOU can see the Andromeda galaxy in the night sky this week with the naked eye. The galaxy is estimated to have as many as a trillion stars – and will one day collide with our own Milky Way ...