Related Clues:
- Sky sightings
- Cause of many calls to the police, often
- Venusian vessel?
- Popular tabloid subj.
- Night light?
- Martian rover?
- Saturnian ship, e.g.
- Alien bearers
- E.T.'s craft
- Faraway craft
- Some unexplained sightings
- Sci-fi sightings
- One evidently not filing a flight plan
- It could be created by swamp gas
- Radar anomaly