WASHINGTON (AP) — A new Pentagon study that examined reported sightings of UFOs over nearly the last century has found no evidence of aliens or extraterrestrial intelligence.

That conclusion is consistent with past U.S. government efforts to assess the accuracy of claims that have captivated public attention for decades.

The study from the Defense Department’s All-Domain Anomaly Resolution Office analyzed U.S. government investigations since 1945 of reported sightings of unidentified anomalous phenomena, more popularly known as UFOs.

It found no evidence that any of those claims were actually signs of alien life, or that the U.S. government and private companies had reverse-engineered extraterrestrial technology and were hiding it.