A report posted earlier this month to the Canadian government's aviation incident database confirmed that the flights witnessed a "bright green flying object" fly into a cloud before disappearing. The object, however, did not impact the operations of either of the flights.
A Canadian military plane flying from a base in Ontario to Cologne, Germany, and a passenger flight KLM Royal Dutch Airlines plane flying from Boston to Amsterdam reported the sighting.
A spokesperson for the Royal Canadian Air Force said, "The crew saw something in the air, and reported it to NAV Canada as per standard procedure, before carrying on with their mission without further incident. While it is not known what they saw, there was nothing to indicate that it posed any kind of security concern or posed a safety risk to the aircraft."
"This Canadian incident case is fascinating, not least for the light it sheds on how sightings are categorized not as UFOs, but as aviation occurrences," Nick Pope, a former employee and UFO investigator for Britain's Ministry of Defense said.
"Part of this stems from historical reluctance on the part of pilots - civil and military - to report UFOs. Instead, these objects are described in terms of unidentified aircraft or drones, as potential air safety issues. What this means is that one has to trawl through all sorts of aviation occurrence reports and then read between the lines to find details of possible UFO encounters," he added.
Steffan Watkins, an aviation and shipping researcher, looked at transponder data from the two flights and saw that the military plane climbed 1,000 feet in altitude at the time of the sighting, possibly to avoid the object or to get a closer look at it. (Related: F-18 fighter plane captures stunning UFO on video... government admits UFO research is real.)
There could also be a chance that the UFO was a meteor streaking through the sky, given that it took place at the earlier part of the Perseid meteor shower, which began in July 14. The government report also tagged the sighting as a "weather balloon, meteor, rocket, CIRVIS/UFO/."
"Yes I know [the UFO sighting] would have been at the early stage of the Perseid meteor shower, but don't be a buzzkill." Watkins added.
In April, Canadian officials revealed that there have been dozens of UFO reports made by commercial airline pilots kept in the Civil Aviation Daily Occurrence Reporting System (CADORS) database. The Canadian military also had dozens of reports dating back 70 years, with some reports describing bright objects moving at speeds twice the rate of an F-86.
The incident over the Canadian airspace comes after the U.S. government released its own report on the subject earlier this year. The report from the Pentagon on the subject of "unidentified aerial phenomenon" (UAP) offered no explanation for 140 of 144 observations dating back to 2004.
The declassified June 25 report from the Office of the Director of National Intelligence also said that it lacked sufficient data to determine the nature of the mysterious objects.
The report read:
"In 18 incidents, described in 21 reports, observers reported unusual UAP movement patterns or flight characteristics. Some UAP appeared to remain stationary in winds aloft, move against the wind, maneuver abruptly, or move at considerable speed, without discernable means of propulsion. In a small number of cases, military aircraft systems processed radio frequency (RF) energy associated with UAP sightings.
"The UAPTF holds a small amount of data that appear to show UAP demonstrating acceleration or a degree of signature management. Additional rigorous analysis are necessary by multiple teams or groups of technical experts to determine the nature and validity of these data. We are conducting further analysis to determine if breakthrough technologies were demonstrated."
Read more about unusual phenomena at Unexplained.news.