Though the flag on the moon was an ordinary variety you can buy off the shelf at Sears, it took a team of engineers to get it ready for the mission. The engineers had to erect a crossbar to support the flag, because the atmosphere-less moon would not suffice. They also had to account for the astronauts' bulky gear when planting the flag, and the heat of the craft upon landing. However, Apollo 11's moon flag was blown down by rocket exhaust as the astronauts blasted off the surface.
Engineering The Apollo 11 Flag On The Moon
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Key Facts In This Video
Engineers erected a crossbar from which the Apollo 11 flag would hang, to make up for the lack of breeze on the moon. 00:35
The final flag assembly of the Apollo 11 flag weighed 9 pounds and 7 ounces. 00:55
Neil Armstrong and Buzz Aldrin placed the Apollo 11 flag too close to the lunar module, and it was knocked over by the rocket's exhaust when they left the surface. 02:03