For decades, our solar system was thought to have nine planets, with Pluto considered the smallest and farthest. But in 2006, ...

For centuries, astronomers have sought to understand the formation and evolution of the solar system and the dynamics that ...

Nasa’s Europa Clipper spacecraft will loop around Jupiter on a course that will carry it by Europa 49 times over four years ...

For instance, Neptune migrated outward, switching places with Uranus, and pushed a lot of the small, icy bodies into the ...

Scientists hunting for the hypothetical Planet Nine have discovered a potential new dwarf planet, 2017 OF201, in the outer ...

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond Neptune, it orbits the sun every 25,000 years.

Scientists say a new planetarium show about the Milky Way has helped them unlock one of the solar system’s many secrets ...

The newly found cloud, named Eos after the Greek goddess of dawn, is one of the largest known structures in the sky and one ...