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| | NASA's Solar System Exploration: News & Events: 11.12.98: Five Discovery Mission Proposals Selected for Feasibility ... |
 | | Aladdin would be led by Dr. Carle Pieters of Brown University in Providence, RI, at a total mission cost to NASA, including launch vehicle and operations, of $247.7 million. |
 | | Deep Impact, a flyby mission designed to fire an 1,100-pound (500 kilogram) copper projectile into the comet P/Tempel 1, excavating a large crater more than 65 feet (20 meters) deep, in order to expose its pristine interior ice and rock. |
 | | Deep Impact would be led by Dr. Michael A'Hearn of the University of Maryland, College Park, at a total cost of $203.8 million. |
| solarsystem.nasa.gov /news/display.cfm?News_ID=24 (964 words) |
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