Playing Ball in Space
"I suspect a well practiced juggler could adjust to the diffences in Space fairly quickly."
I doubt that: the balls wouldn't come back to you.
My point wasn't that he could juggle in space. The point is that he would be used to varying rates of speed, direction, and distances. Therefore, his muscle memory would not as rigid in focus as somebody that plays catch with a baseball.
I appreciate the humor, but in this experiment the balls were thrown at them. It was just catching, no throwing.