China's ambitious Tianwen-2 mission is heading for to two extremely different bodies in our solar system, and should provide ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

The fundamental building blocks for planet formation can exist even in environments with extreme ultraviolet radiation, ...

At long last, particles of water–ice have been discovered in the frozen Kuiper Belt of another star. The discovery, made by ...

NASA and NOAA issue global alerts after the year's most powerful solar flare triggers radio blackouts; satellite and power ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

Starfish Space is getting ready for a second test mission aimed at having its Otter Pup spacecraft dock with another ...

Astronomers have found new evidence that a mysterious ninth planet may be hiding at the edge of the solar ... Satellite (IRAS), launched in 1983, and AKARI, a Japanese satellite which made space ...

The planet is "crumbling to pieces," shedding the equivalent of Mount Everest’s mass every 30.5-hour orbit and will be ...

"Rings are mostly made of ice and small rocks," said William Saunders, a planetary scientist at NASA's Langley Research ...

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as number nine in 2006. Now, a group of international researchers say they may ...