Astrophysicists have recently discovered something that has left them completely baffled. Something is causing massive bullet ...

The Milky Way's galactic halo, a roughly spherical region surrounding the galaxy, contains dark matter and extends beyond the galaxy's visible edge. Astronomers discovered that the spur and gap ...

Add Yahoo as a preferred source to see more of our stories on Google. Milky Way simulations show stellar streams can develop dark matter-like gaps and kinks without encounters with dark matter clumps.

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 ...

Researchers using new simulations suggest that the Milky Way’s past collisions may have reshaped its dark matter core. This distorted structure could naturally explain the puzzling gamma-ray glow long ...

Long ribbons of stars loop around the Milky Way far beyond the galaxy’s familiar flat disk. Astronomers have hoped that disturbances in these stellar streams could expose something otherwise invisible ...

RIVERSIDE, Calif. -- Physicists have proposed a solution to a long-standing puzzle surrounding the GD-1 stellar stream, one of the most well-studied streams within the galactic halo of the Milky Way, ...