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 dazzling six-planet "alignment" this January.

Uranus and Neptune are there too, technically, but they don't appear as 'bright planets'," NASA's Preston Dyches explained in a stargazing video guide. Stock illustration of all the solar system's ...

Out in the depths of space, in our solar system and beyond ... A video from NASA shows a prototype made using 3D-printed and commercial parts being tested in a 25-yard swimming pool at Caltech ...

Have you heard of the “planetary parade” that’s happening in the night skies? For much of January and February, you have the chance to see six planets in our solar system after dark ...