"Gravity Tractor" Could Deflect Earth-Bound Asteroids
View at National Geographic
A spacecraft could use a gravity 'towline' to alter the course of an Earth- bound asteroid, a new study by two NASA astronauts suggests.
Previous schemes to deflect an incoming space rock range from landing a spacecraft on the asteroid and pushing it off course to blowing it up with nuclear weapons.
A spacecraft could use a gravity 'towline' to alter the course of an Earth- bound asteroid, a new study by two NASA astronauts suggests.
Previous schemes to deflect an incoming space rock range from landing a spacecraft on the asteroid and pushing it off course to blowing it up with nuclear weapons.
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