Wally Schirra, One of America's Seven Original Mercury Astronauts, Dead at 84

(Fox News) - Wally Schirra, one of America's seven original Mercury astronauts, and the only man to fly on all three of NASA's pre-shuttle space programs, died Thursday morning in California at the age of 84, NASA officials confirmed.

His family said he died late Wednesday and had been suffering from cancer, David Mould, NASA press secretary in Washington, said Thursday.