Scientists predict that Earth will undergo a mass extinction in 250 million years, wiping out all mammals due to extreme heat ...

It will lead to more purple, brown, or green hues in coastal or stratified areas, with less deep blue color in water as ...

Scientists have found previously undocumented ash deposits buried beneath the Lava Creek Tuff in Wyoming — and at least one ...

When the Kīlauea Volcano erupted in May 2018, an enormous amount of ash was released into the atmosphere in a plume nearly ...

In the middle of the Pacific Ocean, thousands of miles from any continent, Easter Island rises out of the sea. Its surface ...

The Yellowstone region's Beartooth Mountains feature some of the most ancient rocks in North America — as old as 3.96 billion ...