David S. McKay, American biochemist and geologist (born 1936)

David S. McKay

American planetary geologist (1936-2013)

David Stewart McKay was the chief scientist for Astrobiology at the Johnson Space Center. During the Apollo program, McKay provided geology training to the first men to walk on the Moon in the late 1960s. McKay was the first author of a scientific paper postulating past life on…