No Man's Sky: 13 Little-Known Facts You Need To See
4. Each Planetary System Has One Big Event
Each planetary system within the game will reportedly have an "event" that the player can experience, though nobody has yet confirmed exactly that this means, only that it will be a singular, distinctive moment that helps distinguish each system from one another.
While it's extremely unlikely that this will be anything super scripted or cinematic given the nature of the game as a whole, if it helps throw some added diversity and ensure that gameplay doesn't become rote or monotonous, then that's only a good thing.
As Hello haven't said much about it, hopefully that means it's going to be something special, weird and unexpected.