The Congress was broadcast live for three hours, and the bodies of 'extraterrestrials' found in a mine in Peru were displayed in glass boxes. It was announced that the age of the 'aliens', who were about one meter tall and had an egg in their abdomen, was determined by radiocarbon dating. According to tests conducted at the Autonomous National University of Mexico (UNAM), the bodies were 1800 years old.

The mummies, which resembled Hollywood's depictions of aliens, stood out with their elongated heads and three fingers. Speaking at the presentation, Jose de Jesus Zalce Benitez, director of the Mexican navy's Institute of Scientific Health, said the corpses had retractable necks, no teeth, large brains and large eyes capable of 'wide stereoscopic vision'.

Particularly noteworthy was Jaime Maussan, a self-proclaimed UFO expert who took the podium at the UAP session at the Mexican Congress. Maussan called on scientists to examine the 'alien corpses' found in a moss mine.