You can craft warp conduits using rocks and timber. Once you have 2 of them you can stack one on top of the other and they should then be able to be interacted with by facing them and hitting e. This will bring up a list of your saved locations on other worlds and you can warp to one of them for 500 coin. If you don’t have any saved locations on other worlds you’ll need to craft the totem upgrade and shoot it at the planets in the sky. (This takes a while to get to as you need gold alloy and spark)
I believe the world were reset because they deployed their first pass at earth like starter planets.
You can check your location by either going into you inventory and navigating to the locations tab or you can turn on debug mode by pressing “.” and you’ll see your current camera position in there on the left hand side somewhere.