NASA has discovered the third known interstellar object to pass through our solar system, but the icy snowball object poses ...

How close are we to discovering life beyond Earth? In this video, we explore the nearest exoplanets - worlds orbiting other ...

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

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

A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

Never before seen pictures will help scientists learn how the Sun's activity changes from stormy to quiet periods ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

What's happening in the skies over North Texas this month? July holds some spectacular sights in the night and morning sky.

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...