I already think the options you have to organize your planets is fine (i.e by productivity/size/type/ ect.), but one suggestion for improvement I would like to make is; for there to be a bookmark option available for each planet in your database. Then a button right beside the other buttons in planet tab (scanned planets, enemy planets, your planets, legion planets) that will allow you to sift through your bookmark planets.

The benefit of this change would be that you could sort out all the planets you might be interested in you database so you will not have search through your 300-400 or 500 some planets you might have discovered. Another benefit is that you could bookmark all the planets you have that have been recently attacked or recently conquered so you have an idea of what planets to keep an eye on. I thought this would be an added improvement on top of the planet search system already in use and hope you might give this idea some consideration.

I also don't mind hearing others views, so you are welcome to comment bellow.

Yeah, that sounds like a good idea, some little checkbox next to them or something; that would also help with updating your planets' development.

It's a little off topic but maybe he could build in mass application of artifacts. For example, i hate having to purge over 400 planets, one by one.