Betting on Deep Impact's... Impact

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Comet Tempel 1 strikes the Deep Impact probe.

Comet Tempel 1 strikes the Deep Impact probe, July 4, 2005. A trailing craft photographed the collision. NASA hide caption

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On the 4th of July, NASA successfully arranged for a probe to get in the way of a comet. The collision produced a huge cloud of debris and reams of data for scientists to study. They now know more about the makeup of comets.

But one office pool among the scientists remains unresolved: What did the resulting crater look like?



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