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Related Clues:
- Some warriors in 'War of the Worlds'
- Org. that administers PSATs and GREs
- Ones who are worlds apart
- Little green men?
- 19-Across passengers
- Pilots who did not attend flight school
- They're not from around here
- Short tabloid subjects
- Brief strangers?
- Non-earthlings, for short
- They travel a long way to get here
- Some aliens, familiarly
- Otherworldly visitors, for short
- Sci-fi threat
- Some characters in 'The X Files,' for short