Jacques Vallée

Jacques Fabrice Vallée (born 24 September 1939 in Pontoise, France) is a French-American astronomer, computer scientist and venture capitalist — and one of the most influential minds in the scientific study of UAP. After starting his career at the Paris Observatory he moved to the United States, where he contributed to early computing (ARPANET, SRI International under Douglas Engelbart) and, in 1963, to the first computerized map of Mars for NASA. In parallel he began investigating UFO reports systematically and evolved from an initially extraterrestrial reading into his influential interdimensional hypothesis.

• Bachelor's in mathematics from the Sorbonne, master's in astrophysics from Lille University, Ph.D. in computer science from Northwestern University (1967)
• Co-developed the first computerized map of Mars for NASA (1963) and contributed to ARPANET — direct precursor of the modern Internet
• Shifted from an extraterrestrial to an interdimensional framework linking modern UAP reports with historical folklore and religious experiences
• Inspiration for the character Claude Lacombe (played by François Truffaut) in Spielberg's Close Encounters of the Third Kind (1977)
• Author of more than two dozen books including Passport to Magonia (1969), The Invisible College (1975) and Dimensions (1988)
• Multi-volume journal series Forbidden Science
• Still active as a member of the Sol Foundation's advisory board

Vallée is the intellectual bridge-builder between mainstream science and UAP research: he combines a top-tier computing biography with a theory that lifts the phenomenon out of the simple "visitors from space" narrative and places it in a much wider cultural-historical frame. This double authority — NASA/ARPANET on one side, UFO classics like Passport to Magonia on the other — makes him a central reference point in the timeline beyond the narrow ET hypothesis.