Project 10073 Record Card — Seattle, Washington, 29 April 1957

This document consists of a Project 10073 Record Card and an accompanying teletype report regarding a sighting in Seattle, Washington, on 29 April 1957. Two civilian witnesses reported observing seven to nine globular objects moving rapidly across the sky. The witnesses described the objects as white with a greenish tinge, noting that the underside of the objects appeared lighter and flatter, with a marking resembling two half-moons. The objects were observed moving in a V-formation, similar to geese, and traversed 1/16 of the sky in approximately one second. The witnesses, who were outside their residence at 346 North 103rd Street, noted that they had experienced a similar phenomenon approximately one and a half years prior. The report was forwarded by the 25th Composite Air Defense Division at McChord Air Force Base to the Air Technical Intelligence Center at Wright-Patterson Air Force Base in accordance with Air Force Regulation 200-5. The official conclusion reached by the evaluating agency was that the sighting was an astronomical event, specifically a meteor or bolide that had already exploded. A note from a Senior Controller at the time of the report suggested that the observers were watching a comet and that the bright stars and the act of observing the comet may have resulted in visual artifacts, such as spots before the eyes, potentially accounting for the reported phenomenon.