Editors' Picks

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  • What Is Donald Trump's Healthcare Plan?

    Trump has vowed to repeal Obamacare, but what would his alternative be -- and would it work?

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  • What It's Like to Free Dive in Antarctica

    Watch divers recount their experience of snorkeling at the edge of the Earth.

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  • What Anti-Vaxxers Can Tell Us About Confirmation Bias

    While you may disagree with anti-vaxxers, the issue shows a powerful truth about how we seek information we agree with.

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  • Watch Blue Origin Successfully Land a Reusable Rocket

    It was the third completed mission for this particular rocket booster.

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  • Go on a 360-Degree Tour of the International Space Station

    Explore the ISS' fourth module, Destiny.

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  • Avocados Could Have Disappeared For Good

    Many years ago, megafauna thrived on the fruit -- but when those giant animals went extinct, avocados could have gone the same way.

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  • How Many Trees Are There in the World?

    Estimating the total number is a challenge, but it's vital for scientists to better understand our planet.

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  • Watch President Obama's Historic Speech in Cuba

    Nearing the end of his visit, President Obama makes the case for reconciliation and a progressive path forward.

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  • Turning Invasive, Venomous Lionfish Into a Delicious Meal

    That's one way to restore the reef's natural habitat.

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  • Watch Six Tiny Robots Move a 2-Ton Car

    It's the equivalent of six humans moving the Eiffel Tower.

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