An Air Force veteran and former member of the National Geospatial Intelligence Agency is coming forward with information on what he claims are extraterrestrial craft recovered and kept secret by the U.S. government.

Blurry videos of unidentified flying objects have long been a staple of those looking for evidence that stories of UFOs may not be conspiracy theories. In recent years, the government has taken a more vocal role in investigating such sightings, with Congress forming an official U.S. government “Unidentified Aerial Phenomena” task force, recently renamed to the “All Domain Anomaly Resolution Office,” or AARO.

At the same time, NASA and other government agencies have repeatedly said there is no credible evidence of extraterrestrial activity on Earth, attributing most sightings to natural phenomena or human-made objects.