News in Science - Space tractor could tow away asteroids - 10/11/2005: "No need to send Bruce Willis into space with a nuclear bomb. The best way to deal with a killer asteroid hurtling towards Earth could be a 'gravity tractor'.
Two NASA astronauts, gently mocking the solution offered in the Hollywood blockbuster Armageddon have come up with a deceptively simple plan to pull asteroids off course.
Dr Edward Lu and Dr Stanley Love propose in today's issue of the journal Nature that a rocket be launched into space, effectively to act as a giant magnet.
Landing on an asteroid, which is no more than a spinning pile of rubble, is very difficult to achieve.
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