¿Quién no se ha preguntado por la existencia de otros mundos y ha imaginado cómo descubrirlos? Escritos en la primera mitad del siglo XX, los cuentos de Judith Merril, Zenna Henderson, Joanna Russ, Doris...

"They" worried about the impression she'd make. Who could imagine that she'd fall in love, passionately, the way others of her blood must have done? Who was this strange girl who had been born in this...

The colony on the red planet had no need for heroes. It wanted people who knew how to solve the problem of simple survival. More than anything else it wanted independence form a doomed Earth—and it was...