“In The Calculating Stars, Mary Robinette Kowal imagines an alternate history of spaceflight that reminds me of everything I loved about Hidden Figures.”? Cady Coleman, Astronaut

"The Calculating Stars is a wonderful, scientifically accurate view of what might have been. Kowal masters both science and historical accuracy in this alternate history adventure." -- Andy Weir, author of The Martian

"Kowal's book was revelatory for me, because here is a version of history where men eventually, finally, listen to women." --Tor.com

“This is what NASA never had, a heroine with attitude.” -- The Wall Street Journal

"A fine balance of integrating historical accuracy--including mid-twentieth-century sexism, racism, and technology--with speculative storytelling."-- Booklist

"Tantalizing." -- Locus

"Readers will thrill to the story of this "lady astronaut" and eagerly anticipate the promised sequels."-- Publishers Weekly (starred review)

"An engrossing alternate history with a unique point of view, The Fated Sky dramatically demonstrates the technical problems with going to Mars--but the technical problems are the not the only ones. Never backing down from vital issues of race and gender, The Fated Sky confronts the human issues of space travel in a United States made increasingly desperate by a massive meteor strike. Plausible, convincing, and ultimately moving."--Nancy Kress, author of the Hugo Award-winning Yesterday's Kin

"The Lady Astronaut series might be set in an alternate past, but they're cutting-edge SF novels that speak volumes about the present."-- The Verge

“A vibrant space mystery” – Publishers Weekly