Scientific Results of NASA's Deep Impact Mission

On July 4, 2005, NASA deliberately collided a 700-pound spacecraft with comet Tempel 1 at a speed of 22,500 miles per hour. The object of this kamikaze mission was to find out what is below a comet's surface. Although the dust blown out by the impact obscured the final crater, the mission swept away old ideas about comets and revealed a new vision of cometary structure. This lecture will discuss the mission itself, some old ideas about comets and the new ideas that came from this daring experiment.


Asteroids, comets, meteors


February 26, 2008


Melosh, Jay


Deep Impact