Our Milky Way's halo of hot gas is warmer to the "south" than the "north" because of an internal combustion engine-like ...

For years, astronomers have believed that the fate of the Milky Way was tied to our largest neighboring galaxy, the Andromeda galaxy. However, a new study now says that this future Milky Way merger ...

For years, astronomers have predicted a dramatic fate for our galaxy: a head-on collision with Andromeda, our nearest large galactic neighbor. This merger—expected in about 5 billion years—has become ...

In this 2012 visualization, the Andromeda galaxy (left) appears in Earth's skies and begins to distort the Milky Way as the two galaxies merge. This hypothetical scenario was previously expected to ...

Astronomers have long thought that the Milky Way is headed for an inevitable crash with its neighbor, Andromeda. But a new study complicates the story. Researchers have long thought that the Milky Way ...