Kelly's crewmates on Endeavour's final mission are pilot Greg Johnson and mission specialists Mike Fincke, Drew Feustel, Greg Chamitoff and Roberto Vittori of the European Space Agency.

BBC: Shuttle Endeavour launches one last time

The investigation, which dragged on for years, has yet to produce a final report, although interim findings did not exclude pilot suicide, a possibility that the airline had sought to exclude.

CNN: After the Crash

His career dream was to be a pilot, but that was thwarted when he failed the final year of school.

FORBES: BY LUCINDA SCHMIDT

The final version of this vehicle, comprised of a large wing, pilot nacelle and double-skinned airfoil, was flown by cyclist and hang-glider Bryan Allen.

ENGADGET: The Highs and Lows of Human-Powered Flight Alt

The altitude at which the co-pilot handed control of the plane to his colleague was below the minimum altitude considered safe to continue final descent.

CNN: Pilot training blamed for Bali airliner crash

In what could represent the final stages of putting together a merger between American and US Airways, negotiators for the two airlines and the two pilot unions are negotiating terms of transitional contract agreements today in Dallas.

FORBES: AMR and Pilots Face Obstacles in Merger Talks