Jupiter reaches a stunning opposition, Mars is brilliant, Saturn and Venus light the evening sky, and Mercury rises before ...

A bright new 'star' will appear in the night sky this week as the planet Jupiter is visible for the last time until 2026. The ...

Magnetic vortices twisting down from Jupiter's ionosphere into its deep atmosphere cause giant, ultraviolet-absorbing polar ...

NASA's Europa Clipper embarks on a 1.8 billion-mile journey to study Jupiter’s moon Europa for potential habitability.

Learn how you can see bright Jupiter from Earth, helped by its massive size and banded, reflective cloud tops, in December's ...

Look to the east just after dark, and you will see the planet Jupiter sitting between the horns of the easily recognizable ...

Scientists have discovered Earth-sized dark UV spots at Jupiter's poles, likely caused by magnetically driven vortices ...

On November 21, 1676, the Danish astronomer Ole Rømer discovered the speed of light. Before Rømer figured it out, scientists ...

Jupiter shines brightly in the east around 7 p.m. right now. Our solar system’s largest planet is nicely placed between the horns of Taurus, the Bull.

Jupiter, its Great Red Spot and three of its four largest satellites are visible in this photo taken Feb. 5, 1979, by Voyager 1. Io, Europa, and Callisto are seen against Jupiter disk.

Jupiter and the Geminid meteors, Mars and ISS ...