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Comets
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The near-Earth object program office at the NASA/Jet Propulsion Laboratory
A Mission Data Base for Low Cost Missions to Small Bodies in the Solar System
Automated detection of potentially hazardous near-Earth object encounters
The successful conclusion of the Deep Space 1 Mission: important results without a flashy title
Small Body Mission Targets: 13 Objects in 12 years
The Role of Groundbased Radar in Near-Earth-Object Hazard Identification and Mitigation
Planning for planetary protection and contamination control : challenges beyond Mars
Estimating the Impact Probability of a Minor Planet with the Earth
NASA's Near-Earth Object Office Activities
Planetary Defense –Current Efforts, Future Possibilities, and a Systems Engineer’s Perspective
Testing of Advanced Electric Propulsion Systems for Exploration and Commercial Missions