Key facts about space shuttle Endeavour:
• Youngest of the three surviving space shuttles
• Replaced Challenger, destroyed during liftoff in 1986
• Named for ship commanded by British explorer James Cook
• First launch on May 7, 1992, for satellite capture and repair mission
• External fuel tank repaired from Hurricane Katrina damage
• Next home: California Science Center in Los Angeles
Key facts about Endeavour's last mission:
• Commanded by Mark Kelly, husband of Rep. Gabrielle Giffords
• 25th and final flight; second to last of 30-year shuttle program
• Six-man crew, all veteran space fliers. Five Americans, one Italian
• 14-day mission; NASA expects to add two extra days
• Four spacewalks, the last by any shuttle crew member
• Carrying spare parts for International Space Station
• Delivering $2 billion particle physics experiment to space station