Light of Other Days
 Light of Other Days is a science fiction short story by Bob Shaw. It was originally published in August 1966 in Analog Science Fiction and Fact. It was shortlisted for the Nebula Award for Best Short Story in 1966 and was shortlisted for the Hugo Award for Best Short Story in 1967. The story uses the idea of slow glass: glass through which light takes years to pass. Bob Shaw used this idea again in later stories.