A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the ...

Replanting forests can help cool the planet even more than some scientists once believed, especially in the tropics. But even ...

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

Hotter temperatures are more effective at evaporating water out of plants and soil, leading to droughts and failed crop ...

A study suggests that Venus' volcanic "pancake domes" push the planet's crust down, forming bulges toward the surface. This ...

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

The partial collapse of a glacier has destroyed 90% of the village of Blatten, in the Swiss Alps, according to officials. A ...

A series of studies have cast doubt on the sensational claim that "the strongest evidence yet" was found that life exists ...

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 ...