Add Yahoo as a preferred source to see more of our stories on Google. Scientists recently unveiled the nation's newest "oldest known" rock — discovered in Michigan's Upper Peninsula. Michigan, ...

What we know today as Sabino Canyon was the site of a whole lot of scrunching 25 million years ago. In a geologic nutshell: Two ancient types of rock - 1.4-billion-year-old Oracle granite and ...

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Have you ever stood on a piece of Earth, whether at an impressive national park like the Grand Canyon (the most-visited natural wonder in the world) or even in your own backyard, and wondered just how ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

We know Earth is old. Scientists estimate that our planet formed around 4.5 billion years ago. But how old is it exactly? And what was it like when our planet was still forming? These questions have ...

High in the Canadian wilderness, Smithsonian scientists search for ancient minerals that could explain the origins of the continents, oceans and life on Earth Emma Saaty NMNH research geologist ...