In September 2023, two alleged alien skeletons were presented to the Mexican Congress by journalist and UFO enthusiast Jaime Maussan. These specimens were claimed to be 1,000 years old and were purportedly discovered in diatom (algae) mines in Cusco, Peru in 2017. Maussan, who has a history of making controversial and debunked claims about extraterrestrial life, testified that the bodies were non-human and showed no signs of assembly or manipulation​ (Smithsonian Magazine)​​ (NewsBytes)​.

The bodies, small with elongated heads and three fingers on each hand, underwent various tests, including CT scans and carbon dating. Mexican doctors involved in the testing reported that the remains belonged to single skeletons and were not artificially assembled. Additionally, the carbon dating confirmed their age to be around 1,000 years old. One of the skeletons was reported to have large lumps in the abdomen, which Maussan suggested could be eggs​ (The Independent)​​ (NewsBytes)​.

However, the presentation has been met with significant skepticism. Many scientists and experts criticized the lack of transparent and rigorous scientific validation. The National Autonomous University of Mexico clarified that their involvement was limited to carbon dating samples provided to them and that they made no conclusions about the origin of the specimens​ (The Independent)​​ (NewsBytes)​. Further, previous similar claims by Maussan were debunked, such as the 2017 case in Peru where supposed alien mummies were determined to be manipulated human remains​ (Smithsonian Magazine)​.

Currently, the alien skeletons remain a topic of debate, with no definitive scientific consensus validating their extraterrestrial origin. The presentation has sparked both intrigue and criticism, highlighting the ongoing fascination and controversy surrounding claims of extraterrestrial life​ (Smithsonian Magazine)​​ (The Independent)​.