Home > Antenna > Plan to save Earth from asteroid impact > Plan for a gravity tractor > No strings attached They propose a 'gravity tractor': a massive rocket to fly alongside the hostile asteroid and drag it off course. Surprisingly, the two won't touch - instead the rocket will use gravitational attraction to slowly tug the spinning asteroid away from the Earth. Planning for impact Page 2 of 5 Hovering craft back to: Plan to save Earth from asteroid impact   Image: Dan Durda, FIAAA / B612 Foundation     Image: Dan Durda, FIAAA / B612 Foundation

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