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

From January to March, the night sky will host a spectacular parade of planets featuring Venus, Mars, Jupiter, Saturn, Uranus ...

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

The data used to create the image is from a Hubble Space Telescope project to capture and map Jupiter's superstorm system.

Scientists suggest an interstellar visitor may have altered planetary orbits in our Solar System, reshaping trajectories of ...