It's 1952, and the world as we know it is gone. A meteorite has destroyed Washington DC, triggering extinction-level global warming. To save humanity, the world unites to form the International Aerospace Coalition. Its mission: to colonise first the Moon, then Mars.Elma York, World War Two pilot and mathematician, dreams of becoming an astronaut - but prejudice has kept her grounded. Now nothing - and no man - will stop her from reaching for the stars. Winner of the Hugo Award 2019.