The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.

Have you ever wondered why all the planets in our solar system orbit the Sun in roughly the same flat plane? This fascinating ...

New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer solar ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a highly ...

However, even relatively quiescent stars like our sun create space ... can also change the circulation patterns. This can spread molecular species and heat around the planet in ways that aren ...

Researchers are trying to rebuild sea ice above the Arctic Circle so it can reflect the sun’s warming rays, slowing climate ...

The record sheds light on the climate early humans experienced when they were spreading out of Africa. A tree-ringed African ...

This discovery challenges long-standing ideas about how planets form and orbit in the cosmos. And it shows that space still holds many surprises. The planet—named 2M1510 (AB) b—moves around a ...

As our planet makes its annual circuit around the sun, parts of the globe experience dramatic seasonal swings thanks to the tilt of Earth’s axis. Between April and September, the northern ...