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Ellen Stofan saw her first rocket launch when she was 4 years old. Now, more than 50 years later, she's director of the National Air and Space Museum — the first woman to hold the position. Amanda Edwards/Getty Images for Discovery hide caption

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Amanda Edwards/Getty Images for Discovery

New Director Of Air And Space Museum Is The First Woman To Hold The Job

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Why The U.S. And Britain Are Teaming Up To Study A Massive Glacier In Antarctica

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A 2014 photo shows coral on Australia's Great Barrier Reef. The Australian government is dedicating hundreds of millions of dollars to protecting and researching the reef. William West/AFP/Getty Images hide caption

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William West/AFP/Getty Images

U.S. Marines fire the Carl Gustav rocket system during live-fire training last October. With each firing, the shooter's brain is exposed to pulses of high pressure air emanating from the explosion that travel faster than the speed of sound. Sgt. Aaron Patterson/3rd Marine Division/DVIDS hide caption

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Sgt. Aaron Patterson/3rd Marine Division/DVIDS

Report To Army Finds Blast From Some Weapons May Put Shooter's Brain At Risk

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Probiotics For Babies And Kids? New Research Explores Good Bacteria

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Rothschild's giraffe at Lake Nakuru, Great Rift Valley, Kenya. A community project at Kenya's Lake Baringo is attempting to save the subspecies. Education Images/UIG via Getty Images hide caption

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Education Images/UIG via Getty Images

'A Silent Extinction': Finding Peace And Saving Giraffes On A Lake In Kenya

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Joseph James DeAngelo, who authorities suspect is the so-called Golden State Killer responsible for at least a dozen murders, is arraigned in Sacramento, Calif., on Friday. Rich Pedroncelli/AP hide caption

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Rich Pedroncelli/AP
Phillip Waterman/Getty Images/Cultura RF

This Is Your Brain On Ads: How Media Companies Hijack Your Attention

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"Bee health remains of paramount importance for me," said the EU's Commissioner for Health and Food Safety, after the EU moved to ban neonicotinoid insecticides everywhere except greenhouses. Here, a bee hovers near a peach flower. Jamal Saidi/Reuters hide caption

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Jamal Saidi/Reuters

Lorena Bradford (left), head of accessible programs at the National Gallery of Art in Washington, D.C., leads a session of the museum's Just Us program. The program gives adults with memory loss and their caregivers a chance to explore and discuss works of art in a small-group setting. Lynne Shallcross/KHN hide caption

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Lynne Shallcross/KHN

EPA Administrator Scott Pruitt, accompanied by EPA Chief Financial Officer Holly Greaves, testifies before a House Energy and Commerce subcommittee on Capitol Hill on Thursday. Alex Brandon/AP hide caption

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Alex Brandon/AP

EPA Chief Pruitt Faces Tough Questions On Capitol Hill

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