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Yosemite's ultra-deep canyon may have been carved in part by a ghost volcano and river, provocative research suggests

A provocative new hypothesis suggests that Yosemite Valley was carved by an ancient volcano and a disappearing river, both of which have long since eroded away. Geologists have long debated why ...
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'Prepare to be enthralled': How to see Yosemite's enchanting rainbows that form at night

We met Brian Hawkins, a Redondo Beach mechanical engineer-turned-videographer, in the near-empty lobby of the Yosemite Valley Lodge. It was just after 9 on a Tuesday night in late April. Our hunt was ...