Silica sinter (an amorphous form of silicon dioxide) forms from the waters that flow from hot springs near Shoshone Lake in Yellowstone National Park. (Photo courtesy of Jake Lowenstern/USGS) Today, ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ...

Venus is our toxic twin. Its chemical makeup, size and density are similar to our world’s, although its hellish temperatures can melt lead, and its atmosphere is rife with sulfuric acid. But it may be ...

Volcanoes erupting underwater have a distinctive effect on the climate that is larger and more widespread than previously thought, according to an international group led by University of Auckland and ...

NEW YORK (AP) — When an undersea volcano erupted in Tonga in January, its watery blast was huge and unusual — and scientists are still trying to understand its impacts. The volcano, known as Hunga ...