Welcome to CSD, welcome to No Man’s Sky, Traveller!
Currently you can visit Frost planets, Scolding planets, and other types of biomes. volcanoes and geysers are currently not in the game.
However, with the recent announcement of the NEXT update, I’m willing to bet (not promise) we might see things like that this summer. 
Until then, enjoy the new-found wonder! If you see something interesting feel free to share! We love to see what Travellers run into. Even bugs are funny to post.
Again, welcome! 