Can the Federal Government punish you for doing something that was LEGAL when you did it, if it becomes ILLEGAL AFTER you did it?

No.

Explanation:

Imagine you're playing tag with friends. You pause the game for whatever reason, but later someone makes a rule that you can't pause the game to avoid cheating. It wouldn't make sense to punish people that paused the game before they made the rule because at the time it wasn't a rule, and no one was telling them not to do it.

Probably not

Explanation: At one point talking and driving were allowed and now it isn't, people don't get punished like that. Instead they get them a warning and if it proceeds while it's illegal, then you may suffer Consequences.

a. the moon was locked into orbit by the earths gravity as it was passing by and capture hypothesis i think

answer; oxygen to the brain;