WASHINGTON — The government still has no explanation for nearly all of the scores of unidentified aerial phenomena reported over almost two decades and investigated by a Pentagon task force, according to a report released Friday, a result that is likely to fuel theories of otherworldly visitations.
A total of 143 reports gathered since 2004 remain unexplained, the document released by the Office of the Director of National Intelligence said. Of those, 21 reports of unknown phenomena, involving 18 episodes, possibly demonstrate technological capabilities that are unknown to the United States: objects moving without observable propulsion or with rapid acceleration that is believed to be beyond the capabilities of Russia, China or other terrestrial nations.
There is no evidence that any of the episodes involve secret U.S. weapons programs, unknown technology from Russia or China or extraterrestrial visitations. But the government report did not rule out those explanations.
Instead, government officials outlined a plan to develop a better program to observe and collect data on future unexplained phenomena.
The failure to reach a conclusion on the unexplained episodes raised questions about how seriously the government has taken them and whether it has assembled adequate scientific expertise to examine them.
Too little data exists to draw a conclusion about many of the episodes, officials said. But both scientific experts and enthusiastic amateurs have advanced explanations ranging from the mundane to the otherworldly, and the report did little to substantiate or dismiss their theories.
Government officials on Friday were reluctant to acknowledge the potential that the phenomena could be extraterrestrial craft, a signal of how unlikely they view that explanation.
There was no affirmative evidence that the unexplained phenomena are alien spacecraft in the report. But because the government has offered no explanation for so many of the episodes, the new report is sure to fuel the enthusiasm of those who believe they could be.
Among the unexplained incidents are three high-profile videos of aerial phenomena taken by the U.S. Navy and witnessed by pilots in recent years.
The report released Friday is an interim report, which is how former officials involved in the Pentagon examination had predicted the government would initially handle the requirement by Congress to submit an unclassified report on what it knows about UFOs.
The government intends to update Congress within 90 days on efforts to develop an improved collection strategy and what officials are calling a technical road map to develop technology to better observe the phenomena, senior government officials told reporters Friday. Officials said they would provide lawmakers with periodical updates beyond that.
The Pentagon and intelligence agencies have eschewed the term unidentified flying object and refer instead to unidentified aerial phenomena. It has been a bit of rebranding, both to cut down on public enthusiasm and remove the stigma that UFO can carry, in order to encourage pilots to report their observations and scientists to study them.
The new report laid out five categories of possible explanation for the phenomena: a secret technology developed by an adversarial power like Russia and China, classified cutting-edge U.S. technology, a naturally occurring phenomenon, airborne clutter such as errant weather balloons and a catchall “other” category. That final group could include extraterrestrial technology.
Officials do not have any indications that the unexplained incidents show objects that are part of a foreign intelligence collection program or a major technological advancement by a potential adversary, a senior government official said. They are also unable to confirm that any of those incidents are part of a U.S. government or defense industry program, a senior official said.
Nevertheless, the report does not completely rule out a Russian or Chinese aircraft or a U.S. classified program.
The report is being made public because of a provision inserted by Sen. Marco Rubio of Florida, the top Republican on the Senate Intelligence Committee, into a huge spending bill passed by Congress.
“This report is an important first step in cataloging these incidents, but it is just a first step,” Rubio said in a statement. “The Defense Department and Intelligence Community have a lot of work to do before we can actually understand whether these aerial threats present a serious national security concern.”
Of the incidents examined by the task force, there are “no clear indications that there is any nonterrestrial explanation” for them, said a senior official, adding that the government would “go wherever the data takes us” as the inquiry continued.
The report avoids any real discussion of the possibility the unexplained phenomena are extraterrestrial in nature. It was not the purpose of the government’s task force to search for extraterrestrial life, a responsibility that falls to NASA, said a senior governmental official.
Perhaps as a result, government officials said that going forward they would only focus on making observations of the phenomena and had no plans to try to communicate with the objects.
Government officials said that on further examination, the 21 reports that show unusual acceleration or movement could prove to have normal explanations. Government analysts have scrutinized the cameras and sensors that recorded the phenomena for potential flaws, a senior government official said.
There are plausible, but dry, explanations for each of the Navy recordings that are more likely than some sort of extraordinary technology, said Mick West, a science writer who focuses on debunking conspiracy theories.
In one video, a sharp movement of the object could be attributable to a shift in the camera’s movement. In another, an object that appears to be moving fast is shown to be actually moving much more slowly when a relevant trigonometric calculation is applied. An image of a rapidly spinning object skimming over the clouds is caused by infrared glare, West said.
“If you just say, ‘Oh, it’s aliens,’ that’s actually quite a simple explanation,” West said. “The actual explanation is kind of complicated, which is why a lot of people miss it. But yet the mundane explanations exist for all of these videos.”
The Pentagon and the Office of the Director of National Intelligence are considering research and development programs that could improve and standardize data collection, the officials said. With more data, better pattern analysis of the episodes could be done, said a senior government official.
The Pentagon is also hoping to look at historical data collected by radar to find other similar incidents, a senior government official said.
Officials said they looked at 144 unexplained incidents and were able to recategorize one as an example of airborne clutter. The failure to make headway on any of the others is a reflection of the lack of data but also a lack of scientific brainpower examining the problem.
Since the late 1960s, most scientists and scholars have steered away from UFO studies. Their reluctance has hampered the government’s ability to put conspiracy theories about aliens to rest.
“Unfortunately, I don’t think that landscape is really going to change,” said Chris Impey, an astronomy professor at the University of Arizona. “It’s still an area where scientists mostly fear to tread.”
This article originally appeared in The New York Times.
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