Neil Armstrong, the astronaut who became first to walk on the moon as commander of Apollo 11, has died. He was 82 years old. 
Armstrong had heart surgery several weeks ago, and a statement from his  family said he died following complications resulting from  cardiovascular procedures. 
"Neil Armstrong was also a reluctant American hero who always believed  he was just doing his job," his family said. "He served his Nation  proudly, as a navy fighter pilot, test pilot, and astronaut. ... He  remained an advocate of aviation and exploration throughout his life and  never lost his boyhood wonder of these pursuits." 
Read the full statement from Neil Armstrong's Family 
On July 20, 1969, half a billion people -- a sixth of the world's  population at the time -- watched a ghostly black-and-white television  image as Armstrong backed down the ladder of the lunar landing ship  Eagle, planted his left foot on the moon's surface, and said, "That's  one small step for (a) man, one giant leap for mankind." 
Twenty minutes later his crewmate, Buzz Aldrin,  joined him, and the world watched as the men spent the next two hours  bounding around in the moon's light gravity, taking rock samples,  setting up experiments, and taking now-iconic photographs.  The third  member of their crew, Michael Collins, orbited overhead in the Apollo 11  command ship, Columbia. 
"Neil and I trained together as technical partners but were also good  friends who will always be connected through our participation in the  mission of Apollo 11," said Aldrin today in a statement. "Virtually the  entire world took that memorable journey with us. I know I am joined by  millions of others in mourning the passing of a true American hero and  the best pilot I ever knew." 
Collins said, "He was the best, and I will miss him terribly." 
President Obama issued a statement from the White House: 
"Neil was among the greatest of American heroes -- not just of his time,  but of all time," it said.  Armstrong and his crewmates "set out to  show the world that the American spirit can see beyond what seems  unimaginable -- that with enough drive and ingenuity, anything is  possible." 

