Radiant Sky is the second in the Apollo Rising near alternate history series set in the near past and begun with Hot Moon.
In this history the Soviet's beat us to the moon by a few months and kept the space race going.
Hot Moon was set around 1980. Radiant Sky is set in 1983 and our heroin, Vivian Carter, from Hot Moon returns along with other characters from Hot Moon.

I struggled a bit near the beginning of Radiant Sky. Mostly with a passage I thought was too repetitive and talky. That may have just been my own mood. Certainly by 50 pages further in I was happy to keep reading and by the last 40% did not want to put it down. And didn't.

In the author's afterword notes (well worth reading themselves) he indicates there will be more in Apollo Rising. I really hope we won't have to wait two years for his next! Though if we do have to it will still be worth it.