Located 20 miles south of Tucson on the eastern slope of the Sierrita Mountains, the Twin Buttes Mining district dates back to the late 1800s. That’s when four prospectors gophered surface outcrops of ...

The largest U.S. oil company says its new synthetic graphite could extend the life of an EV battery by 30%. Encyclopedia Britannica and Merriam-Webster accuse the AI startup of copying their content ...