What do you now know about space because of the moon landing?

Answer 1

Space itself, not very much. We knew a lot when we sent the Apollo astronauts to the moon. That is how they were able to return safely back to earth. We learned many things about the moon during our voyages there. Namely that most of its features were formed by impact from other objects. Nearly all of the rocks returned by the astronauts were breccias, rocks that formed by the heat of impact from other objects. The heat melted the rocks which combined with other rocks and particles to form the breccia. There was volcanism on the moon during its very early life, but very little of it since. The only mission that found any remnants of volcanoes was Apollo 17, the last mission to land men on the moon. The Apollo astronauts left instruments on the moon that recorded the internal temperature of the moon and found it cold. They also left instruments to record any moonquakes that might happen. Since they were so rare, they crashed their Lunar Module into the moon near the landing sites to cause moonquakes so they could study the thickness of the moon's crust. They found the lunar crust to be between 60 and 86 km thick.