Researchers Take Peek Inside a Comet

Comet Tempel 1 strikes the Deep Impact probe.

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

itoggle caption NASA

Early results from NASA's July Deep Impact mission were announced this week, with some surprises for comet specialists.


Lucy McFadden, co-investigator , Deep Impact Mission; associate research scientist, Department of Astronomy at the University of Maryland in College Park

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