Um, once you send a ship through, just click on the wormhold and a bright white line will show you which wormhole it leads to.  They can lead to other systems, but they can also stay 'in-system' -- there's no telling until you explore.  (Unless it's a single-system map, of course... but even then, be wary because it's always possible the map maker is playing games you aren't expecting...)

Nah you dont need both just one. To get teh white line make you scout go to the center fo the wormhole. There it will jump to the otehr side then you will know were it goes.

I have a question. When building a map with one star system using galaxy forge, how do you get two wormholes to connect to each other in that same star system?

The only way I have been able to do it is via phase lanes, which is not the point. I can't seem to find a way to connct two wormholes through each other.

Any help please??

Thanks for the help, it worked