Do aliens exist? The debate found a new spark as authorities released bodies of two alleged ‘non-human’ beings for display during a congressional hearing in the Mexican capital.

The remains were revealed by journalist and ufologist Jaime Maussan. The ‘alien’ bodies were reported to be 1,000-year-old, Metro reported.

Remains of an alleged ‘non-human’ being is seen on display during a briefing on unidentified flying objects, known as UFOs, at the San Lazaro legislative palace, in Mexico City, Mexico, on Tuesday. (Reuters)

Maussan, speaking under oath at the San Lazaro legislative palace, said, “These specimens are not part of our terrestrial evolution”æ These aren’t beings that were found after a UFO wreckage. They were found in diatom [algae] mines, and were later fossilised.”

He made the claims during an extensive congressional hearing on unidentified anomalous phenomena.

The journalist said the specimens were studied by the Autonomous National University of Mexico (UNAM), where scientists had been able to extract DNA and use radiocarbon dating to establish an age.

“The public has a right to know about non-human technology and non-human enтιтies. We are talking about a topic that unites humanity, not separates us,” Maussan said.

“We are not alone in this vast universe, we should embrace this reality.”

Maussan was joined at the hearing by Lt Ryan Graves, a former US Navy pilot who gave evidence at July’s US congressional hearing, and Professor Avi Loeb, professor of astrophysics at Harvard.

Professor Loeb shared the results of his recent investigation into spherules collected from a meteorite believed to have originated outside our solar system – which he argues may be evidence of alien technology.

Addressing the Mexican congress, he said it was ‘arrogant of us to think that we are alone’, and suggested perhaps there were other beings on the planet before humankind.