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

New data show a 50% chance the Milky Way won't collide with Andromeda. ... American astronomer Edwin Hubble calculated in 1929 that galaxies were moving away from the Milky Way, All of them ...

A new image from NASA composed of different wavelengths created a stunning image of Andromeda. “This new image of M31 is released in tribute to the groundbreaking legacy of Dr. Vera Rubin, whose ...

Take a deep breath: the universe is not just big it’s mind-bogglingly, practically scandalously huge. And it’s growing. A ...

Highlighting 10 major astronomical milestones of the past century in celebration of the Royal Greenwich Observatory’s 350th ...

Others argued that spiral nebulae were so-called island universes: separate systems of stars much like the Milky Way. The truth about spiral nebulae would determine whether the universe spanned a few ...

Astronomers have found a new way of accurately mapping the outer gas disk of the Milky Way using the positions of young stars ...

Both the Milky Way and the Andromeda galaxies (M31) are part of what's known as the Local Group (LG), which also hosts other ...

Scientists previously predicted the pair of galaxies would merge in about five billion years. Now, research suggests that ...

Three simulations showing Milky Way and Andromeda bypass at 1 million light year separation. ... a young Edwin Hubble settled astronomy’s ‘Great Debate.’ ...

This portrait from the NASA/ESA Hubble Space Telescope puts the nearby galaxy NGC 4449 in the spotlight. The galaxy is ...