During January 2025, a large planetary conjunction involving four planets — Venus, Saturn, Jupiter and Mars — will be visible with the naked eye, according to NASA. Here’s what to know about the ...

Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant ...

Collaborative work by amateur and professional astronomers has helped to resolve a long-standing misunderstanding about the composition of Jupiter's clouds. Instead of being formed of ammonia ice -- ...

Jupiter is huge when it comes to planets in our solar system, but it turns out there's actually an upper limit when it comes ...