NASA: National Aeronautics and Space Administration

  1. Question

    Is there really life on other planets and out in space?

    Much of the science of astrobiology is involved in searching for the answer to this question. No direct evidence has yet been found of life beyond the Earth, but we are investigating various habitats that might have the potential to support life, both within our solar system and on planets that circle other stars.
    February 21, 2003

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