This image obtained by NASA's Stardust spacecraft shows a side of the nucleus of comet Tempel 1 that has never been seen before; three terraces of different elevations are visible, with dark, banded scarps, or slopes, separating them.
This image mosaic shows four different views of comet Tempel 1 as seen by NASA's Stardust spacecraft as it flew by on Feb. 14, 2011. The images progress in time beginning at upper left, upper right, to lower left, then lower right.
This series of images shows the area where NASA's Deep Impact probe collided with the surface of comet Tempel 1 in 2005. The view zooms in as the images progress from top left to right, and then bottom left to right.
This image shows the surface of comet Tempel 1 before and after NASA's Deep Impact mission sent a probe into the comet in 2005. The region was imaged by Deep Impact before the collision (left), then six years later on by NASA's Stardust-NExT mission.
This 3-D image shows the region where NASA's Deep Impact mission sent a probe into the surface of comet Tempel 1 in 2005. This picture was taken six years after the Deep Impact collision. 3D glasses are necessary to view this image.
This composite image was taken by NASA's Stardust navigation camera 42 hours before its encounter with comet Tempel 1. The spacecraft is due to encounter the comet in the evening hours of Feb. 14, 2011.
This composite image is the first taken by NASA's Stardust spacecraft's navigation camera. The observations were made on Jan. 18 and 19, 2011. Stardust will fly within about 200 kilometers (124 miles) of the comet's nucleus.
This image layout depicts changes in the surface of comet Tempel 1, observed first by NASA's Deep Impact Mission in 2005 (top right) and again by NASA's Stardust-NExT mission on Feb. 14, 2011 (bottom right).