Best Novella, 1977 (tie)
Houston, Houston, Do You Read?
James Tiptree, Jr. (opens in a new tab)
Three astronauts thrown into the future find a world with no men in it.
Also on the ballot
- The Samurai and the WillowsMichael BishopF&SF Feb 1976
- Piper at the Gates of DawnRichard CowperF&SF Mar 1976