Columbia University professor David Kipping predicts humanity's first alien encounter will be with a rare, "loud" ...

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

(Left to right) Author David Childress, researcher Jason Martell, investigative mythologist William Henry, ancient literature expert Ariel Tzadok, and "Ancient Aliens" producer Max Thompson on a panel ...