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Alex, you refer to this passage
"The consensus model of a comet leading up to the Deep Impact experiment is no longer valid, says Don Yeomans at NASA's Jet Propulsion Laboratory in Pasadena, California, US, a member of the mission science team. "It's certainly not a dirty iceball or an icy dirtball," he told New Scientist. "It's a very, very weak, dusty structure with interior ices."
If you went back and read the entire article in its context, Don Yeomans was NOT inferring that the "Dirty Snowball" model is dead, and it certainly does NOT suggest an "Electric Comet"..........
What i believe is being suggested is that the "dirty snowball" is being misconceived and that comets are more complex than we realise!
So in reality the article isn't telling me anything new! This is the reason why we explore.......we still don't fully understand!
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