KSR also wrote some other novels pitched in a similar way. In fact he's a definitely 'prolific' author. Many of his stories appear to be set on near-future earth, but I haven't read 'em....not enough spaceships & planets on the covers for me!
Aurora was another favourite of mine, a generational starship where one of the villains was the constantly evolving smear of bacteria and mold growing in all the crevices and on door knobs, threatening to wipe out the inhabitants. Such a real-world issue.
But the person to person interactions were the centre of the story. Same goes for '2312', like the Mars trilogy somewhat but set all across the solar system. I admire his creativity and ability to keep writing more.