In this July 20, 1969 file photo provided by NASA shows astronaut Edwin E. "Buzz" Aldrin Jr. posing for a photograph beside the U.S. flag deployed on the moon during the Apollo 11 mission. Aldrin and fellow astronaut Neil Armstrong were the first men to walk on the lunar surface. The trio was launched to the moon by a Saturn V launch vehicle at 9:32 a.m. EDT, July 16, 1969. They departed the moon July 21, 1969.

Photos: Apollo 11

On July 16, 1969, Apollo 11 lifted off on the mission that put men on the moon 4 days later.

In this image taken from video, Thursday July 17, 2014, people walk amongst the debris at the crash site after a passenger plane carrying 295 people was shot down Thursday as it flew over Ukraine, near the village of Hrabove, in eastern Ukraine. Malaysia Airlines tweeted that it lost contact with one of its flights as it was traveling from Amsterdam to Kuala Lumpur over Ukrainian airspace.

Official: 181 bodies found at Malaysian plane site

Continuing Coverage

American intelligence authorities believe a surface-to-air missile brought the plane down but were still working on who fired the missile.