Women may hold up more than half the sky on earth, but it has been different in heaven: science fiction still is very much a preserve of male protagonists, mostly performing by-the-numbers quests. In The Other Half of the Sky, editor Athena Andreadis offers readers heroes who happen to be women, doing whatever they would do in universes where they’re fully human: starship captains, planet rulers, explorers, scientists, artists, engineers, craftspeople, pirates, rogues… As one of the women in Tiptree’s “Houston, Houston, Do You Read?” says: “We sing a lot. Adventure songs, work songs, mothering songs, mood songs, trouble songs, joke songs, love songs – everything.” Everything.