| Answer | Crossword Clue |
|---|---|
| UFO | Strange sky sight |
| UFOS | Strange sky lights |
| UFOS | Strange sky sightings |
| UFOS | Strange sky sightings: Abbr. |
| UFO | Strange thing in the sky |
| UFOLOGY | Study of strange sky sightings |
| UFO | Strange sighting in the night sky |
| PIGS | If they're seen in the sky, strange things are likely to occur |
