Related Clues:

• Cause of many calls to the police, often
• Venusian vessel?
• Popular tabloid subj.
• Night light?
• Martian rover?
• Saturnian ship, e.g.
• E.T.'s craft
• Faraway craft
• One evidently not filing a flight plan
• It could be created by swamp gas
• Radar anomaly
• Strange sighting in the night sky
• ET's transport
• Subject of many a grainy picture
• Sci-fi carrier