(NewsNation) — An unidentified, technologically advanced population could be living secretly on Earth.

That startling claim was made in a new paper by researchers at Harvard and Montana Technological University. They speculate that "unidentified anomalous phenomena" (UAP), another term for UFOs, could be living underground, on the moon or even walking among humans.

The researchers acknowledge in the paper their hypotheses may be regarded skeptically by the general scientific community, but they still deserve "consideration in a spirit of epistemic........

© The Hill