Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Milky Way viewing is at its best right now, especially if you’re in the southern hemisphere. Here's what to look out for, ...

Sauk Prairie will get a glimpse of one of the two eclipses that will occur over the next thirty days. The total solar eclipse ...

A collision between our Milky Way galaxy and its largest neighbor, the Andromeda galaxy, predicted to occur in about 4.5 billion years, has been anticipated by astronomers since 1912.

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

A study published in Nature Astronomy suggests that there is a 50-50 chance of the Milky Way and the Andromeda galaxy ...

The Milky Way may merge with the Large Magellanic Cloud in 2 billion years, not Andromeda, contrary to previous findings.

Gaia, Europe’s Milky Way–mapping spacecraft, shut down earlier this year. It was arguably the most important—and most ...

Scientists previously predicted the pair of galaxies would merge in about five billion years. Now, research suggests that ...

Gravity is pulling more than just stars together - it’s dragging entire galaxies into violent encounters. The Milky Way is currently absorbing the much smaller Sagittarius Dwarf Galaxy, and the ...