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Nature 436, 158-159 (14 July 2005) | doi:10.1038/436158a; Published online 13 July 2005
Deep Impact: sifting through the debris
Mark Peplow
Abstract
When Deep Impact's washing-machine-sized probe slammed into comet Tempel 1 on 4 July, teams of astronomers watched using telescopes in space and around the world. Nature investigates what the images tell us so far about the comet's composition and history.
The mission's goal was to probe a comet as never before. As the impactor neared the comet's surface at a 25° angle, it took pictures of the landscape beneath that reveal a complex geological history, sculpted by outgassing, melting and natural impacts.
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