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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What if an astronaut went on a space walk without wearing a space suit?

Because an Earth-like environment is created within a spacesuit, it allows you to walk around in space in relative safety. But outer space is an extremely hostile place and could kill you if you aren't protected.

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  • Are we looking for aliens in the wrong places?

    Are we looking for aliens in the wrong places?

    If you take cosmic dust and add plasma ... do you get life? Findings suggest that plasma crystals may be the key to one of the universe's greatest mysteries: Is there life out there? See more »

  • Are we not the only Earth out there?

    Are we not the only Earth out there?

    Not by a long shot, self-centered earthlings. So the question is, exactly how many Earth wannabes are cruising around the universe and what are they like? See more »

  • Blastoff! The Big, Bad Space Launch System Quiz

    Blastoff! The Big, Bad Space Launch System Quiz

    On Sept. 14, 2011, NASA announced plans for the Space Launch System (SLS), the driving force behind the American space program for the foreseeable future. How much do you know about the future of American spaceflight? See more »

  • Branson or Bezos: How well do you know the players in the new space race?

    Branson or Bezos: How well do you know the players in the new space race?

    Consult your racing forms, ladies and gentlemen, because the space race, once dominated by nationalized thoroughbreds, has now opened up to private ponies. Try your luck at our new space race quiz and find out if you’re a punter or a piker. See more »

  • Can amateur astronomers spot exoplanets?

    Can amateur astronomers spot exoplanets?

    It's not just NASA pros staring into the night sky. Lots of skilled amateurs are out there pointing their telescopes into the great beyond. But can the average space enthusiast actually make a critical discovery? See more »

  • Can we detect water on exoplanets?

    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. See more »

  • Does a planet need continents to support life?

    Does a planet need continents to support life?

    Land ho! Scientists are discovering exoplanets -- those potentially capable of supporting life -- at a breakneck pace. One thing on the checklist: continents. See more »

  • Exploring Mars

    Exploring Mars

    NASA recently sent Curiosity, its latest exploration rover, to Mars to teach us more about our neighboring Red Planet. Learn about the exploration rovers and the reasons for our exploration of Mars. See more »

  • How do satellites orbit the Earth?

    How do satellites orbit the Earth?

    How do satellites orbit the earth? Why don't they fall straight to the ground like everything else? See more »

  • How do you land a spaceship on a comet?

    How do you land a spaceship on a comet?

    Catching a speeding comet, let alone landing on one, requires trick-shot billiards on an astronomical scale. Crazy as it sounds, the European Space Agency might just pull it off. See more »

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