Particular stars called Cepheid variables allow astronomers to determine distance, and Hubble spotted one of these within M31 ...

The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...

“For example, Chandra’s X-rays reveal the high-energy radiation around the supermassive black hole at the center of M31 as ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor.

Witness the breathtaking beauty of our home galaxy, the Milky Way, through 6 stunning images captured by NASA's Hubble Space ...

Learn about the new research that changes the estimates of the Milky Way’s demise.

Andromeda is close to the Milky Way, and until recently, it was thought that it would inevitably collide with our galaxy in about 5 billion years. However, doubts have arisen, particularly due to ...

The collision between the Milky Way and Andromeda, long considered inevitable, might ultimately not occur. Recent simulations challenge this prediction, opening new perspectives on our galaxy's fate.

They explored how the Milky Way, Andromeda, and their significant satellite galaxies, like M33 and the Large Magellanic Cloud (LMC), interact gravitationally. Possible future MW-M31 orbits.

Astrophotographer Greg Meyer has captured a colorful view of the famous Trifid and Lagoon nebulas illuminated from within by radiation cast out by generations of energetic young stars.