http://www.aolnews.com/science/artic...2?ncid=webmail

By the time scientists finish poring over the data, "I am convinced Comet Hartley will have increased our knowledge of how comets work by at least ... a factor of 10," the mission's chief scientist, Michael A'Hearn of the University of Maryland, said at a post-flyby briefing.
NASA / JPL-Caltech / UMD
This close-up view of Comet Hartley 2 was taken by NASA's Deep Impact spacecraft during its flyby of the comet Thursday. It was captured by the spacecraft's medium-resolution instrument.
Cool Surprise! Just like reading those science fiction books of my yoot.