Experts say newly found karst cave has sediment 'gene pool' that hasn't been seen before, but it needs to be protected before ...

Death Valley is the hottest, driest and lowest national park in the US – and arguably the most visually arresting.

Iran’s Zagros folds are visible via satellite imagery Formed by Arabian-Eurasian plate collision Offers insight into mountain ...

Iran's folded rocks are a colorful formation that is part of the Greater Caucasus mountains, which formed when the Eurasian ...