Ten Secrets About The Apollo 11 Lunar Landing Revealed

08/15/2009 05:12 am ET | Updated May 25, 2011

* The toughest moonwalk task? Planting the flag. NASA's studies suggested that the lunar soil was soft, but Armstrong and Aldrin found the surface to be a thin wisp of dust over hard rock. They managed to drive the flagpole a few inches into the ground and film it for broadcast, and then took care not to accidentally knock it over.

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