Dream Chaser is getting tested at NASA

After a journey spanning almost two decades, Sierra Nevada Corporation's Dream Chaser reusable spaceplane, named Tenacity, is officially undergoing environmental testing at NASA's Neil Armstrong Test Facility located at NASA's ...

Federal agency proposes California spotted owl protection

Federal wildlife officials on Wednesday announced a proposal to classify one of two dwindling California spotted owl populations as endangered after a lawsuit by conservation groups required the government to reassess a Trump ...

How old is California's Yosemite Valley?

First-time visitors to Yosemite Valley gape in awe at the sheer granite wall of El Capitan and the neatly sliced face of Half Dome, aware, perhaps vaguely, that rain and glaciers must have taken a long time to cut and sculpt ...

California's trees are dying, and might not be coming back

The State of California is banking on its forests to help reduce planet-warming carbon dioxide in the atmosphere. But that element of the state's climate-change solution arsenal may be in jeopardy, as new research from the ...

How cities in the West have water amid drought

As drought and climate change tighten their grip on the American West, the sight of fountains, swimming pools, gardens and golf courses in cities like Phoenix, Las Vegas, Los Angeles, Salt Lake City, Boise, and Albuquerque ...

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