Earth researchers have spent generations decoding the Grand Canyon, turning its cliffs and chasms into one of the clearest records of our planet’s deep past. These nine Grand Canyon facts, grounded in ...

History teachers love making everything sound clean and simple. "This happened, then that happened, everyone learned a lesson, the end." Yeah, that's garbage. The Mongols, for example, managed to ...

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. Diamonds require even more extreme conditions — carbon ...