Standing on Proxima b would be unlike anything we’ve ever experienced. Just 4.24 light-years away, this exoplanet orbits the ...

In this video, we take you on a journey to the Pleistocene Epoch, a time when Earth looked vastly different from today.

One idea is that the mountains are parts of the lower mantle that have been superheated due to their proximity with Earth's incandescent core. While the mantle can reach 3,700C (6,692F), this is ...

About 2,000 miles below the Earth’s surface, the planet’s rocky mantle meets the molten, metallic outer core. Previously, a possible ancient ocean floor on the core-mantle boundary had only ...

Earth’s mountains may have mysteriously stopped growing for a billion years. Starting about 1.8 billion years ago, the planet's continental crust thinned, slowing the flow of nutrients into the ...

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

For nearly a billion years during our planet's "middle age" (1.8 billion to 0.8 billion years ago), Earth's mountains literally stopped growing, while erosion wore down existing peaks to stumps ...

Earth's crust once formed a dense "root" supporting Colombia's northern Sierra Nevada de Santa Marta mountains, but new research suggests this prop sank into the mantle millions of years ago.

Arsia Mons, which dwarfs Earth's tallest volcanoes, and its two neighboring volcanoes are often surrounded by water ice clouds, especially in the early morning. The image released Friday marks the ...

These majestic landscapes have always been dangerous, but as the world warms, mountains are becoming much more unpredictable — and the world is unprepared.

Earth may seem like a one-of-a-kind planet, but it actually has a twin The twin is Venus — the hottest planet in our solar system. Our series on The Science of Siblings, examines how these two ...