Apart from the sun, its planets and their moons, our solar system has vast amounts of space rocks—fragments left over from the formation of the inner planets. A large concentration of asteroids ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

It is an evocative idea: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all ...

China’s Tianwen-2 mission has launched to explore an asteroid that may be a piece of the moon, as well as an active asteroid ...

The fall of the Aguas Zarcas meteorite was no ordinary event. It came from a nearly vertical angle, about 81 degrees steep, ...

Scientists' hunt for a mysterious planet at the edge of our solar system might have turned up results. A US-trio appears to ...

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

China's ambitious Tianwen-2 mission will soon be heading to two extremely different space rocks, and should provide vital ...

Meteors, meteorites, comets, asteroids… there are so many names for the various space rocks out there ... of the most ...

Tianwen, which means "questions to heaven," is the name given to China's program of robotic Solar System exploration. Tianwen ...

Researchers from Nagoya City University, Tohoku University, and other institutions have used numerical simulations to ...

The solar-powered Smart Lander for Investigating ... giving scientists a more precise sense of the dangers these space rocks pose to Earth. The telescope’s loss leaves us somewhat in the dark ...