A preauthorization is not a guarantee of benefits or payment. Predetermination. is a voluntary, written request for review of. treatment or services and includes services that may be considered. not medically necessary; investigational, experimental or unproven; or.
The Mercury Project suffered some early setbacks, however, and on April 12, 1961, Soviet cosmonaut Yuri Gagarin orbited Earth in the worldâs first manned space flight. Less than one month later, on May 5, astronaut Alan Shepard was successfully launched into space on a suborbital flight. On February 20, 1962, in a major step for the U.S. space program, John Glenn became the first American to orbit Earth.
exists and is an alternate of . John Glenn (born July 18, 1921, in Cambridge, Ohio), a decorated US Marine Corps pilot, flew the first US orbital mission, completing three orbits of the Earth in his space capsule, Friendship 7 , on February 20, 1962.