Look up to the sky Wednesday morning and you'll see what astronomers call a planetary conjunction as Jupiter and Mars appear to be close together.

The solar system's largest and smallest planets will greet one another in the eastern sky.

Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade.

Discovered by Galileo in 1610, Io has since become one of the most fascinating objects in planetary science. Orbiting just 350,000 km above Jupiter, Io experiences gravitational forces 300% ...

"The Solar Family" is an 11-minute educational film produced by Encyclopedia Britannica Films in 1936. It presents the evolution of the solar system through the lens of the planetesimal hypothesis ...

The giant planets —particularly Jupiter and Neptune—underwent significant migration after their formation. These movements had lasting impacts on the rest of the solar system.

Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade.

Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade.