Freefall in color by many folks.
Sam: Let's head back to the ship. I want to look through the books. Then we'll walk around some more. I have got to get my strength back.
Sam: I had no idea I'd lose muscle so fast. Though considering how far humans are already ahead of my people, it may be a good thing.
Sam: If microgravity caused rapid fat loss instead of muscle loss, humans would have had a vastly overfunded space program and been an interplanetary species by the 1970's.