Margaret Albaugh for NPR
Most evacuees have been allowed to return to their homes near burn zones in Spokane, despite concerns about lingering toxins.
Ronaldo Schemidt/AFP via Getty Images
Muhammad Fajri
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AP
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To create the molecules we need to help us grow food or make fuel, we rely on chemical reactions — and lots of energy. One scientist may have a "brighter" approach, controlling chemistry with light.
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A study in the journal Nature sets a new record for the lifespan of lab-grown cells called organoids. These clusters of human cells in petri dishes are used as models of the human brain.
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For centuries, Navajo shepherds have herded sheep in Arizona's mountains. Now, springs they rely on are drying up, putting a mainstay of the tribe's culture at risk.
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Some residents worry that Gary, a predominantly Black city, may be the last to see the lights go on.
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Sharp water cuts imposed by the federal government threaten to stop or even reverse the boom of fast-growing cities like Phoenix and Tucson.
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NPR's science podcast Short Wave talks about a new type of black hole star, the types of exercise linked to lowered dementia risk, and the wintry adaptations of the long-clawed shrew.
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The federal government finally has a new plan for the shrinking Colorado River. With its two biggest reservoirs at record lows, Arizona, California and Nevada will have to make major water cuts.
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Arizona, California and Nevada will make significant cuts to their take from the Colorado River.
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U.S. officials say the ever-growing population of wild horses that roam federal lands in Colorado is depleting natural resources. But some activists say efforts to remove the horses are inhumane. -
The USS Abraham Lincoln is now on its way home after spending nine months at sea. Experts weigh in on the mental health challenges of prolonged confinement and isolation aboard an aircraft carrier. -
The “roadless rule” is a former President Bill Clinton-era wilderness policy that protects nearly 45 million acres of federal land. -
NPR's Brian Mann paddled the Ausable River in northern New York on a summer day to swim on wild sand beaches that stretch along Lake Champlain's shore.
