But the European Space Agency (ESA) is looking at a far subtler approach to saving the planet – a gravity tractor. The plan involves sending a spacecraft to rendezvous with a dangerous asteroid ...
Other, more experimental ideas exist. Lasers could vaporize part of the asteroid to create a thrust effect, pushing it off course. A "gravity tractor," a large spacecraft that slowly tugs the ...
The ‘gravity tractor’ method of asteroid deflection involves flying a spacecraft close enough to an asteroid so its gravitational attraction gradually pulls the body off course ...
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