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

Vesta, thought to be the second-largest asteroid in the solar system, could be a piece of an ancient, unknown planet, a new ...

The birthplace of stars begins within large, cold clouds of gas and dust, which eventually collapse under the weight of ...

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

A meteorite found in Antarctica in 2012 suggests Earth may have formed with the materials needed to make water, a new study ...

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...

Using the National Radio Astronomy Observatory's Very Large Array, astronomers have revealed for the first time the huge flow ...

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as ...

Pluto was previously considered to be the ninth planet in our solar system, but the new definition of a planet requires the celestial body to have enough gravity to clear its orbital path from ...

NASA’s Lucy spacecraft captures asteroid Donaldjohanson, marking a new step in its mission to explore the solar system’s ...