Mary Robinette Kowal 
Calculating Stars 

Winner of the 2019 Nebula, Locus and Hugo Awards!One woman. One mission. One chance to save the world.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.