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John Spencer

Profession Actor

Credits See All

White Demise

Cal Owens

NOVA

Self - Deputy Project Scientist, New Horizons, Self - Astronomer at Southwest Research Institute

Assignment Discovery

Self

Trailers & Videos See All

Nova: Bigger Than T. Rex

Nova: Death Of A Star

Nova: Volcano Above The Clouds

Nova: The Perfect Corpse

Nova: The Stars: Supernovas, The Big Bang And More

Nova: Runaway Universe