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This Monarch butterfly, originally tagged near a Des Moines suburb, was located as it sat on a thistle 100 miles away on a farm in western Iowa in late September.
Pierce Behrens
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PEPFAR, the U.S. multibillion dollar effort to fight HIV/AIDS, funds organizations such as the Coptic hospital in Nairobi, Kenya.
Brent Stirton/Getty Images
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Schmidtea mediterraneais an especially appealing animal for scientists who research regeneration because, when cut, each of the fragments will regenerate into a complete, new organism.
Alejandro Sánchez Alvarado/Wikimedia Commons
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A new study in the journal Nature Geoscience predicts that 250 million years from now, a supercontinent formed around the equator will be too hot for mammals to survive.
Jean-Philippe Ksiazek/AFP via Getty Images
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The sample return capsule from NASA's OSIRIS-REx mission touched down in the desert on September 24, 2023, at the Department of Defense's Utah Test and Training Range. The sample was collected from the asteroid Bennu in October 2020 by NASA's OSIRIS-REx spacecraft.
NASA/Keegan Barber
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An International Energy Agency report says countries are setting records building solar power projects like AES' Clover Creek solar project in Mona, Utah in 2022.
Rick Bowmer/AP
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Siblings Sofia Oliveira, 18, and Andre Oliveira, 15, pose for a picture at the beach in Costa da Caparica, south of Lisbon, Wednesday, Sept. 20, 2023.
Ana Brigida/AP
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The itchy sensation alerts our bodies to potential threats on our skin, but in some cases, itch can become a chronic condition.
Warumpha Pojchananaphasiri/Getty Images
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The sample return capsule from NASA's OSIRIS-REx mission is seen shortly after touching down in the desert at the Department of Defense's Utah Test and Training Range.
Keegan Barber/NASA
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Ekemeni Riley is the managing director of Aligning Science Across Parkinson's, a research initiative that worked on an effort to bring a more diverse population into a study on genes that carry a greater risk for the disease. A team that included scientists from Lagos, London and the U.S. found a previously unknown gene variant that can nearly quadruple the risk for people of African ancestry.
Anna Rose Layden for NPR
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Theoretical physicist and YouTuber Sabine Hossenfelder, shown in a photo taken in December at the University of Oxford in England, turned to YouTube "to keep my sanity" during the dark days of the pandemic.
Anthony Sajdler
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