Our galaxy, the Milky Way, isn't exactly self-made. Sure, it gathered much of its current bulk on its own, but it also grew by gobbling up smaller galaxies that had the misfortune of getting a bit too ...

The Milky Way’s history may have been more turbulent than previously thought. A new study by astronomers at Durham University in the UK suggests that a violent collision with another galaxy may have ...

Over the past eight years, the European Space Agency’s (ESA) Gaia space observatory has transformed our understanding of the history of our Milky Way Galaxy. From Gaia’s perch at Earth’s L2 Lagrange ...

Learn more about the Gaia Sausage, a trail of stars from a dwarf galaxy the Milky Way absorbed billions of years ago. The Milky Way once absorbed a dwarf galaxy, scattering its stars across our own.

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers say a dwarf galaxy, left, merged with the primitive Milky Way galaxy about 12 billion years ago. - NASA / ESA / Joseph ...

After 11 years in solar orbit, the European Space Agency’s Gaia spacecraft has completed its mapping of our Milky Way Galaxy to a precision never before achieved. Surviving solar radiation and even ...

About 12 billion years ago, the dwarf galaxy LKH merged with the young Milky Way. NASA's Hubble Space Telescope confirmed the ancient collision by analysing globular star clusters. (Image: NASA, ESA, ...