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

Astronomers are reporting the detection of a large object entering our solar system, and it is causing quite the stir in the ...

An object that appears to be from beyond our Solar System has been spotted hurtling towards the Sun, which if confirmed would ...

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...

Among the planets, moons are more common in the outer reaches of the solar system. Mercury and Venus are moon-free, Mars has two small moons, and Earth has just one.

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

The object, a celestial body from another star system, was discovered on Tuesday by the University of Hawaii’s Asteroid ...

The sun rises from the east, and sets in the west - this is a well-established fact for the longest time, and this is due to ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

A grand celestial reunion is due in Earth’s skies throughout June. Sky-watchers will get a rare chance to see all the major planets in our solar system bunched together—with the moon joining ...