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Deep Impact briefing
The pre-launch news conference for Deep Impact is held at Kennedy Space Center on Jan. 11 to preview liftoff of this comet mission aboard a Boeing Delta 2 rocket. (43min 35sec file)

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Comet science
On the eve of Deep Impact's launch, mission scientists hold a news conference at Kennedy Space Center to discuss the comet-smashing project. (35min 17sec file)

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Mission overview
Rick Grammier, NASA's Deep Impact project manager from the Jet Propulsion Laboratory, provides a detailed overview of the spacecraft and its mission. (4min 54sec file)
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Science preview
Deep Impact principal investigator Michael A'Hearn explains how the comet collision will occur and what scientists hope to learn. (7min 11sec file)
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Pre-flight news briefing
The pre-flight news conference is held at NASA Headquarters on December 14 to preview the Deep Impact mission to intercept a comet and blast a projectile into it. (54min 19sec file)
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Photo gallery: Mobile Service Tower rollback
Posted: January 12, 2005


The mobile service tower is rolled back from the Boeing Delta 2 rocket at pad 17B just before sunrise in preparation to launch NASA's Deep Impact comet probe. Photo: Carleton Bailie/Boeing
 

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