Related Clues:

• Examines in depth as dentist does tooth
• Questions or examines thoroughly
• Alien abduction story instruments
• The Mariners, e.g
• Feels it's for the best, almost
• Investigates player -- almost tops
• Looks into note enclosing dress
• Under pressure, formally covers up investigations
• Deep-space vehicles
• Deep-space missions
• Investigates The Last Word over cover-up
• Thorough studies
• Thorough investigations
• Major investigations
• Some NASA launches