In "The Worlds of If," author Stanley Weinbaum plays with a concept that has been at the center of countless science fiction tales before and after: how the mos

Scientists are building rocket ships for a chosen few to escape planets hurtling toward each other on a direct collision course, leaks out touching off a savage

"No one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man's