Two fairly short, well paced sci-fi novels that tell of an an alternate history branching from 1952, when the Eastern seaboard of the USA is hit by a large meteorite.

The story follows a female protagonist who is a scientist, 'computer' and ace pilot, as she, and her refreshingly supportive lead space engineer husband, face the trials and tribulations of fast tracking a space program to ensure against the consequences of this catastrophic event.
The first novel of this duology could stand entirely on its own, but I enjoyed it enough to buy into the continuation and be entirely please I read them both. Even though it's not the kind of hard sci-fi I'd generally go for. There's great technical adherence to the practical realities of spaceflight (and American life) in that era. But no attempt at predicting on technological or societal changes in our own future. And its not really a space opera in the usual sense.
In shines in its feminist tilt, looking at struggles against counterproductive sexism, and racism, in the space program setting. From the perspective of an unlikely heroine, who's main problem is crippling physiological anxiety stemming from physiological mistreatment by the male establishment. Rather than the rigours of spaceflight itself.
The main male characters are interesting constructions, too. The husband appears to be almost an idealised reference for how a feminist might specify best practice male behaviour (towards women). Perhaps a little artificial, but refreshingly non 'rough around the edges'/interestingly imperfect. I found their, more subtly written, physical romance scenes heart warming.
The most interesting character arc is that of a more senior male antagonist. He's initially a somewhat 2D male chauvinist, borderline(?) rapist, who our protagonist is forced to deal with and get to know better, in halting steps forwards and back. Ultimately not ending up going quite where I expected.
Issues [Spoilers]: