An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

Scientists found an intriguing world in our galaxy.

Nasa's Juno spacecraft, orbiting Jupiter and its moons, has detected the most powerful volcanic activity in the Solar System.

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia.

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.