Apollo Moon Missions

The Apollo Moon Missions were a series of NASA missions that put 12 men on the moon through six space flights during 1961-1975. This category is for questions and answers about those missions.

Asked by Daija Kreiger in Astronomy, Social Sciences, Apollo Moon Missions

How long will the footprints on the moon last?

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The footprints on the moon will likely be there for as long as the moon is. Unlike Earth, there’s no liquid water, no volcanic activity, and no weather to speak of on the moon, so aside from the occasional meteorite and solar wind (which takes ages to have an effect), there’s nothing on the moon to mess with the footprints. They’re still there—along with spacecraft, scientific equipment, mementos, bags of human waste, and a lot more.
Asked in Apollo Moon Missions, Apollo 11

Which Apollo mission landed the first men on the moon?

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Apollo 11 landed the first men on the moon.
Asked in Apollo Moon Missions, NASA, Wernher Von Braun

Why was the Saturn V rocket so big?

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The Saturn V was designed to place the Apollo space vehicle on a trajectory to get to the moon. This required a very large amount of fuels and oxidizers be carried for the engines, This required very very big fuel and oxidizer tanks inside each stage, making the Saturn V the biggest rocket ever built. Note: Wernher von Braun's original 1950s plans for a moon landing did not require such a big rocket, as a space station would be used as an intermediate staging area. However when NASA took Kennedy's challenge to reach the moon "by the end of the decade" they abandoned his plan (developing the planned space station would take most of a decade itself) and decided to use a direct one step trajectory to the moon, which needed the very big Saturn V. The development of a space station would be postponed until after the moon missions were over. Currently work is beginning on rockets usable for missions to Mars. They will likely be even bigger than the Saturn V, as even though we do now have a space station it is designed as a scientific research lab not as an intermediate staging area for moon or Mars missions (which would require the space station to have large fuel and oxidizer storage tanks, so it could act as a "filling station" for long range space vehicles before leaving earth orbit, as Wernher von Braun had originally planned the moon landings).

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