City-killer asteroid may be hurtling towards Earth right NOW…& we have no way to detect it, space agency chiefs warn
A CITY-KILLER asteroid could be hurtling towards Earth but going completely undetected, a space agency chief warned. Humanity ...
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‘Gravity tractor’ could be deployed to nudge asteroids away from Earth, says European Space Agency
Hollywood films would have us believe the best way to deal with an Earth-threatening asteroid is to blast it out of orbit. But the European Space Agency (ESA) is looking at a far subtler approach to ...