NASA’s Perseverance rover recently captured a stunning image of a black-and-white striped rock on Mars, sparking excitement ...

Throughout Earth's history, ice caps have been very rare, but a model of the past 420 million years suggests an explanation ...

At the top of the world, there is a sea—the remains of one, at least. The summit rocks of Mount Everest, the highest ...

Researchers identify a new mechanism that allows avalanches containing a mixture of rock and ice to travel very long distances.