NASA
Nasa: Information on the Sts 51 L Challenger Accident
The mission profile of the Challenger accident, including the sequence of events, images and movie clips, crew profiles, and the report of the Presidential Commission.
NASA
Nasa: Astronaut Biography: Gregory B. Jarvis
Official NASA biography of Gregory B. Jarvis, the payload specialist for the Challenger. He was on board when the Challenger exploded in 1986.