NASA spacecraft arrives at ancient asteroid

Via AP:

After a two-year chase, a NASA spacecraft arrived Monday at the ancient asteroid Bennu, its first visitor in billions of years.

The robotic explorer Osiris-Rex pulled within 12 miles (19 kilometers) of the diamond-shaped space rock. It will get even closer in the days ahead and go into orbit around Bennu on Dec. 31. No spacecraft has ever orbited such a small cosmic body.

It is the first U.S. attempt to gather asteroid samples for return to Earth, something only Japan has accomplished so far.

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NASA spacecraft arrives at ancient asteroid

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