Imagine an Earth on which a meteoroite hit in 1952, not only decimating Washington D.C. and much of the Eastern seaboard, but setting the planet on a course for human extinction. This is the alternate history laid out in Mary Robinette Kowal's Lady Astronaut series, which sees humanity working to get to space and colonize Mars much faster than in our timeline.
","author_name":"Den of Geek"}