Board Thread:Questions and Answers/@comment-76.84.252.248-20170410162515/@comment-25199965-20170411110230

well, my last rebase is quite a while ago but when you swipe 'new Base' you have the choice.

As far as I remember I recycled everthing and got most of it back (when the new Base was running i had a 'safe deposit box'). That was long before Mars. I assume nowadays Moon and Mars are treated kind of seperate, so when starting a new moon mars stays there (freezes) until you finished moon tutorial up to Mars 'go' but not sure.