So my friend and I recently started a moded run on Volcanus but now the we have the rocket build we noticed that Nauvis just dose not exist for some reason.
We checked in the Factoriopedia too but it's also not in there. This whole thing makes getting military science a bit stressful since the only other way to get bio mass is Gleba and with only red ammo and barely any research it's just not the fun challenge we were looking for. I really hope there is a solution to this bug(?).

Thanks in advance for the help.

Can you share your mod list? This is the first time I'm hearing of this.

Our mods include:
-elevated rails
-Any Planet Start
-Change Inserter Drop Lane
-Factorio Library
-HelicopterRevival
-Krastorio 2 Spaced out (plus assets)

Omg I just figured it out...It's not your mod but the Krastorio2 SO Void spinoff mod. It completely removes Nauvis from the game.
My friend must have not checked the mods before installing them.

Phew, had me worried I was going down a compatibility hole lol.

I'm so sorry! Next time I will set up the server so stuff like that dose not happen again, can't trust him with anything lol.

Thanks anyways for the fast reply!

No worries and no problem, glad you figured it out quickly!