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23 JUNE 2018 - DUNVANT, SWANSEA
Kris & Phil Prevel were in their garden looking at the moon, Venus and the stars through binoculars. They noticed a bright white circular light moving in front of a jet aircraft. It suddenly got a lot brighter and then winked out after being visible for only 1.5 seconds.
The jet stayed on its straight course, sending out a contrail and the plane's lights clearly visible. They watched for some time afterwards but there was no re-appearance of the bright light. Kris checked flight info and found that there was no commercial flight going over Swansea at the time, so presumably the aircraft was military.
Source: SUFON Files: witness report.