NASA’s Deep Impact space mission was employed to take detailed pictures of which comet nucleus?

NASA’s Deep Impact mission was specifically aimed at comet Tempel 1. In July 2005 the Deep Impact spacecraft released an impactor that struck Tempel 1, producing a dramatic plume and yielding before-and-after images of the targeted surface region; popular coverage and mission photo galleries document these high-resolution pictures of Tempel 1’s nucleus taken during the encounter. NASA/JPL also released direct images from Deep Impact’s high-resolution imager showing the nucleus of Tempel 1, confirming that the mission photographed the comet’s solid core up close [1]. Peer-reviewed mission reports and scientific papers describe the impactor excavating a crater on Tempel 1 to probe its interior, underlining Tempel 1 as Deep Impact’s primary nucleus target [1].

Sources

1. [1] https://www.jpl.nasa.gov/images/pia02119-tempel-1-nucleus/
2. [2] https://www.science.org/doi/abs/10.1126/science.1118923