Eli5.. how did they blast off from the moon to get back to earth?

Question

Eli5.. how did they blast off from the moon to get back to earth?

In: 1639

Answer 1

You might be asking why they didn’t need a giant rocket like the one that lifted off from Earth.

The main reason is that gravity is so much lower on the moon. You need very little power to escape the moon’s gravity.

Another reason is that they don’t have to carry very much. Most of the weight / size of the main Saturn V rocket was fuel to send everything to the moon.