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Michael Stevens: How Do You Find Smart Answers to Quirky Questions?

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Naomi Oreskes: Why Should We Believe In Science?

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Kevin Jones: Can Embracing Uncertainty Lead To Better Medicine?

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Liz Coleman on the TED stage in Long Beach, CA. Asa Mathat/TED hide caption

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Asa Mathat/TED

Liz Coleman: How Do We Teach College Students To Ask Big Questions?

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Ryan Lash/TED

Eric Haseltine: Can The Past Guide Us To Future Scientific Breakthroughs?

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TV screens in Seoul, South Korea, show images Wednesday of Kim Jong Nam, the half-brother of North Korean leader Kim Jong Un. Ahn Young-joon/AP hide caption

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Ahn Young-joon/AP

Chemical Weapon Found On Body Of North Korean Leader's Half-Brother

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(Top) Police make arrests as they move through the Oceti Sakowin camp. (Bottom) The police moved steadily and slowly through the camp, accompanied by Humvees and maintaining a perimeter of the cleared area. Angus Mordant for NPR hide caption

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Angus Mordant for NPR

Andie Vaught grasps a stress toy in the shape of a truck as she prepares to have blood drawn as part of a clinical trial for a Zika vaccine at the National Institutes of Health in Bethesda, Md., in November 2016. Allison Shelley/The Washington Post/Getty Images hide caption

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Allison Shelley/The Washington Post/Getty Images

A typical meal in the Democratic Republic of Congo consists of greens, fufu - a starchy ball made from cassava flour - and meat, such as freshwater fish. Amy Maxmen for NPR hide caption

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Amy Maxmen for NPR

Scientists rallied for evidence-based public policy outside the American Geophysical Union's fall meeting in San Francisco in December. Marcio Jose Sanchez/AP hide caption

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Marcio Jose Sanchez/AP

Should Scientists March? U.S. Researchers Still Debating Pros And Cons

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Mae Jemison addresses congressional representatives and distinguished guests at Bayer's Making Science Make Sense 20th anniversary celebration in 2015. Kevin Wolf/AP Images for Bayer Making Science Make Sense hide caption

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Kevin Wolf/AP Images for Bayer Making Science Make Sense

After Making History In Space, Mae Jemison Works To Prime Future Scientists

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Military veterans protesting the pipeline stand opposite police guarding a bridge at the edge of the Standing Rock Sioux Reservation on Dec. 1, 2016. Scott Olson/Getty Images hide caption

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Nick Dupree arrives at the Federal Courthouse in Montgomery, Ala. on Feb. 11, 2003. His success in getting the state to continue support past age 21 enabled him to attend college and live in his own home. Jamie Martin/AP hide caption

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Jamie Martin/AP

Nick Dupree Fought To Live 'Like Anyone Else'

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Vijayan's night frog (Nyctibatrachus pulivijayani), a 13.6 mm miniature-sized frog from the Agasthyamala hills in the Western Ghats in India, sits comfortably on a thumbnail. It is one of seven newly discovered frog species. SD Biju hide caption

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SD Biju

This artist's rendering shows what one of the seven planets, TRAPPIST-1f, might look like. NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

Astronomers Find 7 Earth-Size Planets Around A Nearby Star

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The Apollo 11 command module Columbia sits in the Mary Baker Engen Restoration Hangar in Virginia, where it is undergoing conservation. Dane Penland/National Air and Space Museum/Smithsonian Institution hide caption

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Dane Penland/National Air and Space Museum/Smithsonian Institution