on the [url=http://www.galaxylegion.com/wiki/index.php?title=Common_Artifacts[/url] wiki page, you can sort by artifact point cost.
the only time 'luck' comes into play in terms of what artis you can pull is when your arti per hour is less than 20k. over 20k, mass storage pods become available. if you are at 20,001 arti per hour, your entire pull for an hour could be 1 mass storage pod. since that 1 MSP takes the place of possibly 5 rescued prisoners, you can decide whether that is 'lucky' or not.
once you have magnitudes more arti per hour, the discrepancies between arti distribution in pulls should even out over time.
you can only keep as many arti points, mineral points and research points as your storage capacity (diff from cargo space).
http://www.galaxylegion.com/wiki/index. ... vs_StorageStorage is your ship's capacity to hold undrawn artifact points, mineral points, and research points. Research point storage increases by 150 RP for every rank gained, while Mineral point storage increases by 500 per planet occupied, and Artifact point Storage by 1,000 per planet occupied. Storage for Research, Artifacts, and Mining production can be further increased by purchasing storage towers from the Artifact Market using GP.
so buying storage towers increases the maximum time that you can accumulate resource points before the excess is lost.
i am trying to aim for an 8.hour window for arti and minerals to allow for sufficient sleep time. i've given up on keeping up with research storage to match. currently at: 8.60 hours for mining ... 7.95 hours for arti ... 5.97 hours for research