Related Clues:

• Down-to-earth ones, in brief?
• U.F.O. fliers
• Toy store aliens
• 'The X-Files' topics, for short
• S.A.T. administrators
• Some sci-fi pilots
• Sci-fi sightings
• Sci-fi creatures
• Sci-fi subjects, for short
• Some 'Star Trek' convention costumes
• Sci-fi figures
• Tabloid aviators, briefly
• They may come down to Earth
• They're from waaaay out of town
• They're certainly not from around here