NASA will today release the findings of its long-awaited study of more than 800 UFO sightings spanning three decades. The decision comes a day after UFO researcher Jaime Maussan presented two allegedly “non-human” bodies in Mexico.

The US space agency announced last year that reviews evidence of Unidentified Anomalous Phenomena (UAPs), better known as Unidentified Flying Objects (UFOs). Last May, NASA’s independent study team shared its preliminary observations in which it said that up to 98% of reported sightings of unidentified anomalous phenomena can be explained.

These are defined as views “which cannot be identified as aircraft or known natural phenomena from a scientific point of view”.

These truly unexplained UAPs are defined as “something that is not easily understood by the operator or the sensor’ or ‘something that does something weird,’ said team member Nadia Drake earlier this year.

The Pentagon has received 350 UFO reports the last two years, and 171 of them remain unexplained.

The NASA study is separate from the Pentagon’s investigation into UAPs, where US lawmakers heard firsthand reports of UFO sightings from former members of the military earlier this year. NASA assembled an independent panel of 16 scientific, aeronautical, and data analysis experts with the goal of analyzing the UAP observations from a logical and scientific perspective.

“We have access to a wide range of observations of the Earth from space – and that’s the lifeblood of scientific research,” the space agency’s Thomas Zurbuchen said last year before the study began.

“We have the tools and the team that can help us improve our understanding of the unknown. This is the very definition of what science is. That’s what we’re doing”.

The report is due to be published at 09:30 local time today. A media briefing will follow at NASA headquarters in Washington where the panel will discuss its findings.

The press conference will be broadcast live on NASA TV, the NASA app and the agency’s website.