From the DelveRush Wiki · Worlds and travel
Wayline gates
Wayline gates give free repeat travel after a planet route is open.
Outbound gates
The Orbital Colony has one labeled ring gate for each planet. A gate works after the Star Map opens its route.
Return gates
Each planet survey dock has an open west gate. It returns players to the Orbital Colony.
Travel cost
Physical gate trips cost zero Coins. They do not open new planet routes.