I like the first logo but think adding a star chain would be a nice touch. With that in mind, I adapted yours to use a transparent background [which the uploads change to white … sigh] and superimposed the centered star chain centered in the circle. While the chain is not as dominant as in your second series, I like the emphasis on the portal and glyphs with the star chain an enhancement.
It’s also good to see what a logo looks like at varied sizes. The adaption looks good down to 75px width.
I also would like emphasizing the current Atlas Citizen Science Division vs. the old ETARC. I don’t think A&S/Hello Games will make that irrelevant.
Thoughts?