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

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

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

The Milky Way's core will be visible this month and through August. Here's what Tennessee stargazers should know.

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

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

Astronomers have located a rare exoplanet on the edge of the Milky Way.

Scientists at Rice University believe there’s a 40% chance that a mysterious ninth planet — Planet Nine — could be orbiting far beyond Neptune and Pluto in the icy Kuiper Belt. This potential ...

The European Space Agency (ESA) said it is monitoring an unidentified object alongside Russia identified only as A11pl3Z as it hurtles at astonishing speed from outside the Milky Way ...

The existence of the planet, named AT2021uey b, took years to verify. Astronomers have located a rare exoplanet on the edge of the Milky Way. The exoplanet, a gas giant named AT2021uey b, orbits a ...