The James Webb Space Telescope promises to see in new ways, and even further back in time.
The president chooses the nation’s most vulnerable state to talk about impacts of climate change and rising sea levels.
Deepwater drilling is increasing in the Gulf. Oil companies say it’s safer now, but critics say spills are inevitable.
A surge in hydroelectric power could displace the iconic region’s indigenous peoples and resources.
On the 150th anniversary of that trip, historian Adam Goodheart reflects on the rail splitter’s special connection to railroads.
California Fish and Wildlife is helping endangered bighorn sheep reclaim their old range—by lifting them over the humans and mountain lions.
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