This is a survival map with similarities to SkyBlock. It features many different planets and some of them, such as Earth, are inspired by ones found in our own solar system. There are also other astronomical bodies like asteroids and moons. Your most foremost objective is to survive but then also find a way to explore other planets to scavenge for food and other items necessary for your survival.
The sun and other Nether planets are equal to the Nether so this means you will find zombie pigmen spawning there.
There’s also one planet which looks like Saturnus and there you will find an End planet with an End portal.