When it comes to the fall of the Roman Empire, this climate shift may have been the straw that broke the camel’s back.” ...

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

There are stunning black sand beaches all over the world, and almost all of them are worth a visit. In this article, we take ...

Mars Express has revealed the dynamic landscape of Mars, showcasing both rugged terrain and smoother, younger plains on the ...