It has been two months since the Deep Impact spacecraft's impactor slammed into Comet Tempel 1, and astronomers are continuing to learn about the physics of the event, the nature of the excavated debris, and how the experiment's results are changing what they know about comets and the early solar-system conditions in which these ancient relics formed.
In a full day of presentations at this week's American Astronomical Society Division for Planetary Sciences meeting in Cambridge, England, scientists from around the world discussed their latest findings. Here are some highlights:
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