[seer]

Temporal Space Yards are easier to defend because they are on the planet itself and less subject to missile attack because weapons platforms can return fire. Also because they are on the planet they are subject to hapiness and population bonuses. +20% (for jubilant) and +50% for (2000m pop) can make a big difference.

In my mod the temporal space yards are about equivalent production-wise but easier to defend. Look for an updated Version tonight or tommorow.