Blast Off at Woomera is a young adult science fiction novel, the first in Hugh Walters' Chris Godfrey of U.N.E.X.A. series. It was published in the UK by Faber in 1957, in the US by Criterion Books in 1958 under the title Blast Off at 0300 and in the Netherlands in 1960 by Prisma Juniores under the title Ruimtevaarder nummer één (Astronaut Number One) The books are now quite collectable, changing hands for sums around £50-£100 or more on book trading sites.