No. It was the Kaguya probe, which was from Japan.
The probe was of no danger to us. It was just coming to the end of it's life, so they smashed it into the Moon's south pole as a final experiment. Thanks to the still orbiting portion of the mission, they are going to be able to examine the composition of the lunar surface, and tell us a great deal about the formation of impact craters. They'll also be looking for evidence of sub-surface ice. You may remember we did something similar by smashing a probe into a comet a couple of years ago...
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