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

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

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

The comet-like body, designated 3I/ATLAS, is hurtling towards the Sun at a speed of over 60 kilometres per second ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

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

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

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

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

It's only the third time that experts have spotted an object in the Milky Way that's come from a different solar system. Find ...

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 ...

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