tractor

11.23.09

Aerospace Giant Building a Gravity Tractor to Deflect Killer Asteroids

A company follows the vision of two NASA astronauts to protect Earth against space rocks
By Jeremy Hsu Posted 08.31.2009 at 3:58 pm 9 Comments

NASA astronauts Edward Lu and Stanley Love first proposed using a robotic spacecraft to nudge space rocks away from Earth using the gentle force of gravity a few years ago. Now a European aerospace giant has begun seriously investigating the concept.

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