Related Clues:

• Challenger's letters
• ''The Right Stuff'' group
• Shuttle gp.
• D.D.E. creation
• Galileo org.
• Shuttle's org.
• ''Endeavour'' org.
• Rocket launching agcy.
• Columbia's org.
• Magellan org.
• Discovery maker
• Canaveral org.
• Voyager launcher
• Astronauts' org.
• ''Atlantis'' org.