What are Spacegates?

Spacegates increases your fleet speed by 100% per level

If you have spacegate level 2, your corvettes will depart 200% faster from that base

If you have a base and a starbase at the same astro, building spacegates on both astros will not stack. Each spacegate will be selectable in the Fleet Move page, where you can set separated fee for both spacegates, the smaller could cost less, and the biggest costing more to be used by non allied players.