Related Clues:

• Houston agcy.
• High-testing group
• Columbia creator
• Cape Canaveral letters
• Rocket scientist's employer
• Explorers' org.
• High IQ group
• Space shuttle launcher
• High-IQ club
• Ltrs. on a rocket
• Bright circle?
• Schirra's grp.
• Inits. on Mars
• Logo on a G-suit
• Space Age org.