The 1777 Cook expedition and the discovery of Christmas Island

Record summary

During Cook’s third voyage, HMS Resolution reached Christmas Island in 1777, and the expedition recorded its approach, landscape, water resources and astronomical circumstances. The episode is identifiable through Cook’s journal, shipboard observations and published voyage accounts. It may matter for UAP comparison because remote Pacific islands were frequently reported through uncertain horizons, mirages, cloud banks and charting errors, later inviting “phantom island” interpretations. The Christmas Island landfall itself is a conventional exploration event, and the observational record should be read alongside navigational and environmental data.