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Avoiding doomsday: New ideas for deflecting killer asteroids
One plan would use spacecraft propelled by solar sails; another would crash a spacecraft into an asteroid
One plan would use spacecraft propelled by solar sails; another would crash a spacecraft into an asteroid
Source: CBSNews
Posted on: Thursday, Sep 01, 2011, 7:46am
Views: 1059
Posted on: Thursday, Sep 01, 2011, 7:46am
Views: 1059
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