An asteroid estimated to be the size of three football fields whizzed close to Earth on Monday, roughly a year after one exploded over Russia and injured 1,200 people.
Slooh Space Camera tracked the approach of the asteroid as it raced past the planet at about 43,000 km/h, starting at 9 p.m. EST, the robotic telescope service said in a statement on Slooh.com.
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