I don't know that I'd heard of Antarctica yet, so thanks for that one! Also, it's a bit more more mystical and alt-history than his typical hard sci-fi, but don't sleep on Years of Rice and Salt. I put off reading it for a long time as the concept is not what I usually look for in KSR or sci-fi in general, but it's become one of my most frequent rereads.
On a separate note, what system did you use for your Aurora campaign? I gravitate towards sci-fi for my reading and fantasy for my TT gaming, mostly because I don't like how "hand-wavey" a lot of sci-fi RPG systems get with their science, so I'm curious what's out there that can accommodate a KSR sci-fi campaign.