Sydney Sun
SydneySun.com Saturday 11th February 2012 Volume 042/10
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    Tether maneuvers spacecraft without fuel
    Source: MSNBC
    Friday 3rd September, 2010  

    A NASA team is preparing a bid to test a chemical-free propulsion system that taps the power of Earth's magnetic field to move satellites and spacecraft in orbit.

    Think of the force holding togethe... ...

    Read the full story at MSNBC


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