Armstrong's small step

The big moment has arrived: the lunar module touches down on the moon's Sea of Tranquility at 4:18 p.m. EDT on July 20. "Houston, Tranquility Base here. The Eagle has landed."

Armstrong stepped off the LM a little more than six hours later, at 10:56 p.m. EDT, uttering his famous line: "That's one small step for a man, one giant leap for mankind."

(According to NASA, the black bar running through the TV picture is an anomaly in the television ground data system at the Goldstone Tracking Station.)