• Treading Water

    Treading Water

    Rising seas around Florida foretell what climate change may eventually do to other coastlines—and economies.

  • Astronomers Catch Mysterious Radio Blast

    Astronomers Catch Mysterious Radio Blast

    Coming from far beyond the galaxy, an extremely energetic blast of radio waves has been snared by astronomers lying in wait.

  • Tracking the First Americans

    Tracking the First Americans

    Genetic data and new archaeological discoveries offer clues to the mystery of early Americans’ origin.

More Science and Space Quizzes

  • Photo: Moon rising over snowy mountains

    Moon Mysteries and Myths Quiz

    For every fact we know about the moon there are a hundred superstitions, legends, and mysteries. See how well you know your lunar lore.

  • Image: Human brain model wrapped in measuring tape

    Brain Quiz

    Are you a brain when it comes to the brain? Find out with this quiz and give your gray matter a workout in the process.

  • Image: Planet and stars in space

    Solar System Quiz

    Our solar system is filled with mysterious and often mind-blowing phenomena. Do you know asteroids from meteoroids and Venus from Mars?

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    Stress Quiz

    How much do you know about stress and how it affects your body? Take the quiz and find out—but don't stress about it.

  • nasm-quiz.jpg

    Air and Space Quiz

    Think you know the Smithsonian National Air and Space Museum inside and out? Test your aeronautics IQ with our carefully curated questions.

  • Photo: Apollo 15 Commander Dave Scott salutes the flag

    Moon Landing Quiz

    How much do you know about U.S. Apollo missions?

Blog: StarStruck

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Latest Video

  • Promo image from the salmon release video

    600,000 Salmon Restock California River

    As California's drought endangers Chinook salmon, fisheries officials release 600,000 baby salmon into the Sacramento River, triple the usual number, in hopes that many return to spawn. Video.

See more videos »