SPACE EXPLORATION

Space exploration is a broad topic covering many facets of deep-space and planetary science. Learn about space probes, Mars Rovers, SETI and other out-of-this-world subjects.
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Can we detect water on exoplanets?

Looking for water on faraway planets doesn't involve spotting rivers or oceans. Instead, scientists keep an eye out for what types of light a planet emits to figure out whether a planet might be life-friendly.

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  • How Space Regulation Works

    How Space Regulation Works

    Hollywood has no problem coming up with space cops who enforce the law in the wild black yonder. In reality, space regulation is a wee bit trickier. See more »

  • How SPACECAST Works

    How SPACECAST Works

    In March 2011, European scientists announced the launch of a project called SPACECAST to detect and forecast space weather. How will it work and what do they hope to learn? See more »

  • How the Doomsday Ark Works

    How the Doomsday Ark Works

    If the Earth is struck by calamity, will survivors find salvation in the proposed Doomsday Ark? The lunar-based vault will contain information that could help jumpstart a new civilization. See more »

  • How the James Webb Space Telescope Will Work

    How the James Webb Space Telescope Will Work

    It'll journey 1 million miles from Earth and look deeper into space than ever before. It may even observe light from the very first stars. Ready to meet the mighty Webb? See more »

  • How the Mars Curiosity Rover Works

    How the Mars Curiosity Rover Works

    Martians, there's a spiffy, new rover in town. If you want to meet this nuclear-powered, laser-toting monster truck of science, head on over to the Gale Crater to get a glimpse. See more »

  • How the Mars Exploration Rovers Work

    How the Mars Exploration Rovers Work

    Of course we want to go to Mars. Until we figure it out though, roving robots with names like Spirit, Opportunity, Sojourner and Curiosity are our best bet for digging up dirt on our nearest planetary neighbor. Want to go along for the ride? See more »

  • How the Space Launch System Will Work

    How the Space Launch System Will Work

    Have you met the driving force behind the U.S. space program for the foreseeable future? Take a second to get acquainted with the proposed blasting behemoth. See more »

  • How Voyager Works

    How Voyager Works

    The Voyager space probes took dazzling pictures of planets no one had ever seen. And they're still on the move, carrying golden records with a message for aliens -- complete with bagpipes and Louis Armstrong. See more »

  • Is China winning the new space race?

    Is China winning the new space race?

    Between the cancellation of the U.S. space shuttle program and the launch failures that have plagued Russia, you may have given up hope on space. China hasn't. See more »

  • Lunar Landings Over the Decades

    Lunar Landings Over the Decades

    Explore the historic space voyages, technology and people that have shaped 50 years of NASA. See more »

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