New research suggests that the makeup of space ice might be quite a bit different than we previously believed.

An Alaskan volcano that has been inactive for more than 100 years is showing signs of rumbling, according to scientists.

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

The remains of landscapes thought to have formed when ancient rivers flowed across East Antarctica have been discovered—and ...

Almost two-thirds of the world's population is affected by the monsoon—the annual arrival of intense rains in areas north and ...

The discovery resets our understanding of how ice behaves in the frigid vastness of deep space and could influence our ...

A trove of prehistoric Ice Age treasures are being exhibited alongside classic works of art to show why they deserve their ...

For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired ...

The collapse of the world’s second-largest ice sheet would drown cities worldwide. Is that ice more vulnerable than we know?

The Earth has had at least five major ice ages, and humans showed up in time for the most recent one. In fact, we’re still in it.

Earth's 'catastrophic' ice melt problem is worse than previously thought, study says The world's two gigantic ice sheets are in greater peril from global warming than previously thought, a study ...

Arctic ice sheets covered most of Northern Europe and America 20,000 years ago. A new study finds ice ages are cyclical and can be predicted based on the Earth's orbit of the sun.