Close, proceduraly generated so psuedo-randomly to ensure that no planets are exactly alike. If you spend enough time in game it does begin to feel a bit like more of the same. Within 24 hours of this update I had already found a few things I had never seen anything similar to in the game.
I found a planet where half the aliens had a star on their belly and they excluded the other aliens from all the activities so the two groups were locked in a bitter eternal civil war.