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

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system ...