The images from Mexico shocked the world. The remains of two allegedly "non-human" beings were presented at a congressional hearing in Mexico City and it was claimed that the "corpses" presented by journalist and ufologist Jaime Maussan were the 1000-year-old fossilized remains of extraterrestrials.
"These specimens are not part of our terrestrial evolution... These are not beings found after a UFO wreck. They were found in diatom (moss) mines and then fossilized," Maussan said.
The extraordinary allegations were made during an extensive congressional hearing on unidentified anomalous phenomena. Maussan said the samples were analyzed by the Autonomous National University of Mexico (UNAM).
The fossils, which were subjected to extensive analyses, were unusually covered with a layer that looked like sand.
"The public has the right to know about non-human technologies and non-human beings. We are talking about a subject that unites humanity, not divides us. We are not alone in this vast universe, we must embrace this reality," Maussan said.
The ufologist was joined at the hearing by former US Navy pilot Lieutenant Ryan Graves, who testified at a US congressional hearing in July, and Professor Avi Loeb, professor of astrophysics at Harvard.
Numerous military images were shown earlier in the trial, including a video of 11 separate lights hovering above the clouds taken by a fighter jet.
Some, including US congressman Tim Burchett, believe that the objects have extraterrestrial origins, while others argue that they are more likely secret military operations.
Speaking at a US congressional hearing in July, UFO whistleblower David Charles Grusch claimed that the government was withholding evidence of intact alien craft.