Scientists recently unveiled the nation's newest "oldest known" rock — discovered in Michigan's Upper Peninsula. Michigan, Minnesota and Wisconsin all feature ancient rocks known as gneisses — ...
Scientists recently unveiled the nation's newest "oldest known" rock — discovered in Michigan's Upper Peninsula. Michigan, Minnesota and Wisconsin all feature ancient rocks known as gneisses — ...
The people at the Smithsonian Institution National Museum of Natural History were nice enough to give a couple members of the Chemistry in Pictures team a behind-the-scenes look at their mineral ...
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 ...
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 ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
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 ...
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 ...
Oldest North Cascades bedrock, a 400-million-year-old tale from European origins. The oldest bedrock in all of the North Cascades sits high in the mountains near the Canadian border. Its origin story ...
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