Air carrier pilot reported observing an Unidentified Aerial Phenomenon (UAP) during cruise flight. Reporter stated that the UAP presented as different light formations that maneuvered in a precise and rapid manner around the aircraft for approximately 10 minutes before they disappeared.

Narrative

Report on Observation of Unidentified Aerial PhenomenonGeneral Information - Route: ZZZ to ZZZZ; Aircraft Altitude: 40;000 feet MSL; Aircraft Mach Speed: 0.84 Mach; Enroute Winds: Winds from 226° at 26 knots; Outside Air Temperature (SAT): -54°C; Flight Route: Oceanic. Flight Crew Details - Captain: Off duty and on crew rest during the event; Relief Pilot: Seated in the Captain's seat and acting as Pilot Flying (PF) during the event (This is also the reporting pilot); First Officer (FO): Seated in the First Officer's seat; acting as Pilot Monitoring (PM). Aircraft Status - Systems Condition: Fully operational with no degraded systems reported; Navigation Performance:Required Navigation Performance (RNP): 4.0; Actual Navigation Performance (ANP): 0.03 nm; Global Positioning System (GPS) Systems: Fully operational with reliable indicators on both units; TCAS (Traffic Collision Avoidance System): Functioning normally; no alerts or traffic detected throughout the observation; Avionics & Instrumentation: No interference; malfunctions; or anomalies observed. Radar; communication systems; and displays operated normally. Event Overview - Time and Duration: Total Observation Event Period: Approximately 10 minutes. Disappearance: All lights vanished abruptly when the aircraft executed a planned 40° right turn at waypoint 'ZZZZZ;' as Aircraft X turned from an 088° magnetic course to a 127° magnetic course; as per the filed and approved ATC flight plan clearance.Initial Positioning of Lights - Relative Bearing: Initially observed at an 11 o'clock bearing relative to the aircraft's noseFormation: The lights formed an equilateral triangle shape. As assessed from the left seat of the aircraft while observing the formation; the distance between each light was assessed by putting the Relief Pilot's left arm out and the Relief Pilot assesses that the distance between each light source was close to a full width of the palm or roughly 5 to 6 finger widths. Each light source within the formation was positioned at a perfect equal distance from each other. Two lights were positioned in the lower corners; and one was at the apex above them. Altitude Estimates - Two Lower Lights: Estimated at 30;000 feet MSL; about 5° below the aircraft's altitude. Single Top Light: Estimated at 60;000 feet MSL; about 12° above the aircraft's altitude. Distance Estimate: Initially judged to be 30-60 nautical miles away. However; due to the lights' rapid and near-instantaneous movements; precise distance perception was difficult to measure and may have been closer or farther away.Behavior and Movement of Lights - Color and Initial Maneuvers: The two lower lights initially emitted a solid; intense white glow; matching the intensity and color of the single central light positioned above them. This top light formed the apex of a triangular formation and remained unchanged in color and stationary throughout the observed event. Shortly thereafter; the two lower lights transitioned to a multicolored; strobing or pulsating display; rapidly flickering in irregular patterns of blue; red; and white. Each light exhibited a unique pulsation frequency; creating a dynamic and unpredictable visual effect. Notably; each light source appeared to exist within a translucent bubble; as categorized by the Relief Pilot. Formation Change: The two lower lights maneuvered toward each other; converging directly beneath the top center light while maintaining their approximate altitudes of 30;000 feet MSL. They remained joined for approximately 10 seconds; circling each other rapidly in a counterclockwise rotation beneath the apex light; creating a tight multicolored light formation. Separation and Repositioning - Rapid Movements: After the 10-second convergence; the two lower lights separated in a synchronized motion: Right Light: Ascended to an estimated altitude of 90;000 feet MSL in 1 second; positioning itself at a 30° inclination relative to the flight deck. Left Light: Repositioned to the aircraft's left wing; approximately 3 nautical miles abeam on the 45-degree bearing line; and descended slightly to an altitude of 37;000 feet MSL (3;000 feet below the aircraft's altitude). Top Light: Remained stationary at 60;000 feet MSL; serving as the apparent focal point of the lower lights' activity. It also was initially observed as an extremely intense white light and maintained exactly its color and intensity throughout the entire observation. Final Event and Disappearance - Lights' Behavior: The lights maintained their respective positions relative to the aircraft for several minutes. As the aircraft executed its planned 40° right turn; as originally cleared by ATC as part of the original flight plan routing; the lights vanished simultaneously and abruptly; leaving no residual light trails or visual indicators.Environmental and Sensory Observations - Flight Deck Conditions: Temperature: Maintained at a steady 75°F. Unexplained Independent Chills: First Officer's Experience: The First Officer experienced a sudden drop in temperature; becoming noticeably cold and needing to retrieve a jacket. At the time; the Relief Pilot was focused on reviewing the flight plan information; as required for oceanic flight operations; since the crew had just exited the track system and entered the coast-in phase. The Relief Pilot was ensuring all relevant data was recorded in the flight logs and confirming the completion of all checklist items. It was only later that the Relief Pilot realized the First Officer had become cold while observing the lights and attempting to determine their nature. Relief Pilot's Experience: The Relief Pilot began experiencing intense shivering approximately at the time of the observation; despite the flight deck temperature remaining steady. However; the Relief Pilot did not verbally acknowledge feeling freezing or that the flight deck was unusually cold until just after reporting the phenomenon to ATC. This sensation of cold persisted for approximately 15 minutes after the lights disappeared. Electromagnetic and Instrumental Effects: No interference with avionics; radios; or other systems.Radar displayed no anomalies or unusual returns. Navigation displays and communication systems functioned normally.ATC and Crew Interactions - The phenomenon was reported to ZZZZ ATC by the Relief Pilot during the observation of the lights. At the time of the sighting; the Relief Pilot and FO both acknowledged that the phenomenon was unnatural and could not be attributed to any celestial reflection. The Relief Pilot proceeded to contact ATC. It was during this communication that the Relief Pilot realized one of the lights had taken position off the left wing of Aircraft X. Unfortunately; no photograph exists of the light off the left wing; as the Relief Pilot was processing what they and the FO were witnessing. As the Relief Pilot described the situation to the FO; the Relief Pilot leaned against the window to look back and confirm the light's position relative to the aircraft. This added to the momentary confusion and limited their ability to document the light visually. The two lower lights; initially solid white; had already changed color and converged beneath the stationary apex light before circling each other for approximately 10 seconds and then rapidly repositioning. One light moved upward and to the right of the apex light; while the other took position off the left wing of the aircraft. During this time; the Relief Pilot asked if the FO was observing the same movements and color changes. The FO responded; 'It's like they know we're talking about them.' The Relief Pilot replied; 'Yeah; it's crazy and amazing. I'm gonna report it to ATC.' The Relief Pilot contacted ATC to inquire about any known aircraft or objects off their nose to the left; as nothing was appearing on the flight's navigation displays. ATC confirmed that no reported traffic or objects were in the area. ATC subsequently asked a nearby air carrier flight if they could observe anything unusual in the vicinity. The air carrier crew reported they did not see any lights or objects. Upon request from ATC; the Relief Pilot described the event in detail. The Relief Pilot explained that the crew initially observed three intense white lights in a triangular pattern; with two transitioning to multicolored strobing patterns and executing precise; rapid maneuvers. The Relief Pilot further reported that one light ascended to a position high and to the right of the center light; while the other had moved to a position off the left wing. The two maneuvering lights maintained their multicolored appearance. Upon closer observation; the Relief Pilot described the object near the left wing as an intelligently controlled; multicolored; unknown object encased within a translucent; bubble-like structure. At the end of this portion of the event; ATC advised the crew to switch to a new radio frequency as the aircraft approached waypoint 'ZZZZZ.' At this point; the flight crew initiated a turn from a magnetic heading of 088 degrees to 127 degrees. As soon as the aircraft began to turn; all three lights vanished simultaneously; as if switched off instantaneously. Notably; no other aircraft in the vicinity; including the nearby air carrier flight; reported similar observations during the event.Crew Reactions and Debriefing - First Officer's Comments: Suggested the lights could be the sun or the moon. Relief Pilot's Assessment: Declared the event extraordinary and unnatural; stating; 'This is not normal and is extraordinary; and extremely unnatural.' The Relief Pilot noted that the sun was 3-4 hours below the horizon in front of them before it would rise and that there was no observable moon. Captain's Input: Mentioned hearing of other pilots witnessing unusual events but noted the stigma associated with reporting such occurrences.Conclusions and Observed Characteristics - Unique Observations: The lights displayed rapid; controlled movements; maintaining a precise triangular formation. Their behavior and characteristics do not align with any known natural or artificial phenomena. Unexplained sensory anomalies; such as a sudden cold sensation; coincided with the observation and were independently noted by both flight crew members. Recommended Follow-Up: Investigate ATC radar logs for potential unidentified returns in the vicinity during the time of the event; and interview the involved controller. In conclusion; the flight crew observed no meteorological anomalies; atmospheric refractions; or weather-related phenomena that could account for the event. The skies were clear; with no cloud cover or visible disturbances; and enroute conditions were stable; with consistent winds from 226° at 26 knots and an outside air temperature of -54°C at 40;000 feet MSL. Both the Relief Pilot and First Officer (FO) independently confirmed that the lights' movements and characteristics were entirely inconsistent with natural atmospheric effects or celestial reflections. This assessment is corroborated by the aircraft's weather radar; which displayed no anomalies or unusual returns during the observation period.Closing StatementThis report is submitted by the Relief Pilot; who personally observed the described phenomenon. With nearly 6;000 flight hours spanning military; commercial; and private aviation; the reporting pilot brings extensive operational experience and technical expertise. The Relief Pilot possesses a comprehensive understanding of international aviation regulations; aircraft certification processes; aerospace engineering and operational safety protocols. Additionally; the Relief Pilot holds advanced degrees in Aviation; equipping him with a robust analytical framework for evaluating complex aviation events. The event detailed in this report is unprecedented in the reporting pilot's career. The precise; coordinated movements of the lights; their triangular alignment; and their