Researchers have spotted a Jupiter-like gas giant forming in the disk around a young sun — earlier in the star's lifetime ...

Astronomers have photographed WISPIT 2b, a giant planet still feeding on gas in a dusty ring gap 433 light-years away. The ...

A young gas giant, WISPIT 2b, was detected within a multi-ringed disk around a Sun-like star. Its active formation provides a ...

Ancient droplets found in meteorites reveal the history of planet formation. About 4.5 billion years ago, Jupiter expanded quickly into the giant planet we see today. Its immense gravity disturbed the ...

The planetary disk likely looks remarkably similar to how Earth's own solar system began 4.5 billion years ago. Astronomers have discovered a brand-new type of planet outside our solar system that, ...

The heat came from the decay of radioactive elements within the dwarf planet’s rocky interior that occurred when Ceres was young—an internal process thought to be common in our solar system. “On Earth ...

Ready for a show? A six-planet alignment begins Aug. 10. Here are which planets you can see and how to get the best view.

A model of a solar system first and foremost with a small projector built in, the Science Can Solar System Planetary Projector is a great educational tool for kids.

Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in Florida and the United States.

Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in the northern hemisphere.

Space The Hunt for ‘Planet Nine’: Why There Could Still Be Something Massive at the Edge of the Solar System The mystery of Planet Nine is far from solved. Here's what we know.