The video ranks the biggest cosmic threats to humanity, from rogue planets and black holes to supernovas, gamma ray bursts, ...

The Milky Way and Andromeda have appeared locked on a destructive course for decades. Now, thousands of simulations suggest their collision is not destiny, but a contest between gravity, uncertain ...

Add Yahoo as a preferred source to see more of our stories on Google. This illustration shows a possible view from Earth of the early stages of a predicted merger billions of years from now between ...

Hubble’s portrait of Andromeda revealed hundreds of millions of stars, ancient collisions, and hidden streams of galactic ...

For decades, astronomers wondered why most nearby galaxies are speeding away from the Milky Way instead of being pulled in by its gravity. New simulations reveal the answer: our galaxy sits in a ...

Computer simulations carried out by astronomers from the University of Groningen in collaboration with researchers from Germany, France and Sweden show that most of the (dark) matter beyond the Local ...

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may arise from several very different evolutionary events. Bursts of star ...

A new ultra-faint dwarf galaxy has been discovered in the vicinity of Andromeda (M31), the Milky Way's large neighboring galaxy. The new study, published in Astronomy & Astrophysics suggests that the ...