First Moon-Walker 'Doing Great' According To His Wife, Carol

Neil Armstrong, who in 1969 became the first human to walk on the surface of the Moon, recently underwent a quadruple coronary bypass after four blocked arteries were discovered during a routine checkup.

Armstrong's wife Carol says the retired 82-year-old astronaut is "doing great," according to a report from NBC News. That assessment was backed up by fellow moon-walker Gene Cernan, who flew on the Apollo 17 mission.

Amrstrong's condition was discovered during a heart stress test, which he failed. His wife said that he is in very good spirits, and doctors anticipate no problems as he recovers.

"NASA wishes Neil Armstrong the very best for a quick recovery from surgery," said NASA Administrator Charles Bolden in a statement. "Neil's pioneering spirit will surely serve him well in this challenging time and the entire NASA Family is holding the Armstrong family in our thoughts and prayers. I know countless well-wishers around the world join us in sending get well wishes to this true American hero."

(Image provided by NASA)

FMI: www.nasa.gov