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A skull discovered at a sacred Aztec temple. A new study analyzed DNA extracted from the teeth of people who died in a 16th century epidemic that destroyed the Aztec empire, and found a type of salmonella may have caused the epidemic. Alexandre Meneghini/AP hide caption

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Alexandre Meneghini/AP

Urchin Triptych is one of hundreds of Christopher Marley artworks on display at the Gallery of Amazing Things' "Biophilia" exhibition. Christopher Marley Studio hide caption

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Christopher Marley Studio

Oregon Artist Turns Dead Creatures Into Beautiful Compositions

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Ben and Tara Stern relax at home in Essex, Md. Ben was diagnosed with glioblastoma in 2016. After conventional treatment failed to stop the tumor, Ben tried an experimental drug. Meredith Rizzo/NPR hide caption

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Meredith Rizzo/NPR

For Now, Sequencing Cancer Tumors Holds More Promise Than Proof

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Shalon Irving, a public health researcher who worked for the Centers for Disease Control and and Prevention who was studying the physical toll that discrimination exacts on physical health, died just a few weeks after giving birth to her daughter, Soleil. Black women are 243% more likely than white women to die during or shortly after childbirth. Becky Harlan/NPR hide caption

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Becky Harlan/NPR

Rescues Continue In California Mudslide Zones

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Waves crash onto the beach near Brighton Pier in England, in January 2007. Gale force winds and heavy rain brought disruption to large parts of the country. Severe weather events like this one may be linked to more frequent fluctuations in the polar jet stream, according to a new study. Peter Macdiarmid/Getty Images hide caption

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Peter Macdiarmid/Getty Images

Image of galaxy SDSS J1354+1327 (lower center) and its companion galaxy SDSS J1354+1328 (upper right). The inset panel to the right is a four-color image that combines Hubble exposures with Chandra X-ray observations. NASA , ESA, and J. Comerford (University of Colorado-Boulder) hide caption

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NASA , ESA, and J. Comerford (University of Colorado-Boulder)

MaryJane Sarvis, an artist in Shaftsbury, Vt., weaned herself from the opioid painkillers she was prescribed for chronic nerve pain. "I felt tired all the time and I was still in pain," she says. Marijuana works better for her, but costs $200 per month out-of-pocket. Emily Corwin/VPR hide caption

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Emily Corwin/VPR

The High Cost Of Medical Marijuana Causes Pain In Vermont

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