First, a quick overview: the Milky Way is classified as a disk galaxy, with a broad circular collection of stars, gas and ...

The Vera Rubin Telescope’s first stellar-stream discovery exposes M61’s hidden tail, revealing how galaxies merge and ...

Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why ...

It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two spiral galaxies colliding is ...

Despite the previous belief that our galaxy and the neighboring Andromeda would eventually merge in about 5 billion years, forming what they call Lactomed, a new analysis has reached a different ...

NASA Chandra X-ray telescope data from galaxy cluster Abell 2146 showed a "shockwave that stretches for some 1.6 million ...

The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

Astronomers have clocked a cosmic collision at 3.2 million km/h (2 million mph). A new instrument has spotted a galaxy crashing through a group of others at incredible speeds, creating a shock wave ...