Throughout Earth's history, ice caps have been very rare, but a model of the past 420 million years suggests an explanation ...

There seems to be too much of a radioactive element in rocks deep in the Pacific Ocean – how did it get there 10 million ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Cathy Whitlock, Regents Professor ...

Trovants in Romania grow by absorbing minerals from rainwater Found near Costești, they expand and form ‘baby’ rocks Myths claim trovants are dinosaur eggs or alien formations ...

Choose from Clip Art Of Gibbon stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Video Back Videos home Signature collection Essentials ...