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    Earth's Line Of Defense

    This episode of Sci Fi Science demonstrates three solutions for threats in our planet Earth. It basically utilizes laser and beam of solar energy to destroy or push away comets and asteroids.

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    Channels: Others Astrophysics

    Tags: Sci Fi Science Permanent Solution

    Uploaded by: ( Send Message ) on 09-12-2012.

    Duration: 2m 6s