I wonder why we can not do research on every planet with an evolution chamber? Every planet with a shipyard can build ships even iif  I am buikding on another planet.  It would be faiiir if thiiis goes also for research.  So if a planet has a evolution chamber why limit research to one topic simultanious?  I have 3 planets with evolution chambers, but if  I start research on one of the planets, I cannot start another topic for research on planet 2 or 3...

So why would I build more then one evolution chamber??

True. I suppose it's made to slow down the growth of players. Would be fair though, while increasing the time of each investigation and make them faster depending on how high is the level of the research facility.

Take a look from another side - research takes days or even weeks on high levels, and cost so much that you cannot collect this amount of resources from 10 planets. So I do not see big problem here.

ion_nsk_region,  I have 50 moons, gates, insects, al stations stations, asteroids addon.
and 10 planets still easy to get
ALL this objects are in sorting.
 

You do not know this game.  

Humans have https://xcraft.ru/infos/?gid=123 Research Network
Xerj can spoil human`s labs.