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

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

Astronomers spotted an object speeding at 133,200 miles per hour (about 214,364 kilometres per hour), which is too fast to be ...

Astronomers have confirmed that a recently spotted object is an interstellar visitor, and appears to have come from the ...

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

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

Bad news, earthlings. Computer simulations of the solar system’s future reveal a new risk facing us all: The gravitational tug of a passing star could either cause another planet to smack into ...

There are many asteroids in our Solar System which orbit the Sun in oval or egg-shaped elliptical orbits which can take millions of years to complete.

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. Located about 120 light years away, the exoplanet appears to take an unusual path ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.