Millions at risk as huge 'city killer' asteroid heads towards earth
A 'city killer' asteroid is currently moving away from our planet but is expected to alter its trajectory in the coming years ...
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‘City Killer’ Asteroid Now Has 3.1% Chance of Hitting Earth, Says NASA
An asteroid that could level a city now has a 3.1-percent chance of striking Earth in 2032, according to NASA data released Tuesday -- making it the most threatening space rock ever recorded by modern ...