Is it all just smoke and mirrors? The Department of War released over 160 previously classified files on Friday in an effort for greater transparency surrounding UFOs, aliens and extraterrestrial life — but some experts believe the government is still hiding key information from us.

A newly declassified set of UFO-related FBI and Pentagon documents has reignited global fascination with unidentified aerial phenomena. Among the most startling claims are witness accounts describing possible “four-foot-tall” humanoid beings seen in connection with unidentified flying craft.

Aldrin, 96, the second person to walk on the moon, said during a technical crew defriefing one week after the Apollo 11 crew returned to Earth that they observed three oddities. His statements were released in a UFO-related documents dump by the Pentagon on Friday.

The Pentagon has released a significant collection of previously classified UFO files, offering new insights into government investigations of unexplained aerial phenomena over the decades.