On July 3, 1969, just 17 days before Neil Armstrong and Ed Aldrin walked on the lunar surface, the USSR made its second attempt to test-fire its own moon rocket, known as N1. No official announcement about the secret mission had ever been made, but in subsequent passes over the Soviet test range in Tyuratam, Kazakhstan, U.S. spy satellites glimpsed utter devastation at one of the two launch pads known to host the moon rocket. The Soviet Union didn't know it at the time, but its hopes for reaching the moon also ended on that charred launch pad in 1969.