Scientists closely monitoring so-called "city-killer" asteroid
Scientists are closely watching a recently discovered asteroid that is being called a potential "city-killer." NASA calculates there is a 1.6% chance it could hit the Earth in 2032. CBS News space consultant Bill Harwood has more.
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Scientists are closely watching a recently discovered asteroid that is being called a potential "city-killer." NASA calculates there is a 1.6% chance it could hit the Earth in 2032. CBS News space consultant Bill Harwood has more.
