Related Clues:

• Voyager launcher
• Astronauts' org.
• ''Atlantis'' org.
• Rover's owner
• John Glenn's org.
• New Horizons launcher
• Canadarm user, abbr.
• Service-entrance site
• Org. with frequent launchings
• Paddler's target, perhaps
• Launch pad gp.
• Astronaut agcy.
• Target of a swift kick, perhaps
• Booster grp.?
• Von Braun's org.