Happy Birthday: Leigh Douglass Brackett (December 7, 1915 – March 24, 1978) was an American author and screenwriter. Nicknamed "the Queen of Space Opera," she was one of the most prominent female writers during the Golden Age of Science Fiction. As a screenwriter, she was best known for her collaborations with director Howard Hawks, mainly writing Westerns and crime films. She also worked on an early draft of The Empire Strikes Back (1980), elements of which remained in the film; she died before it went into production.

In 1956, her book The Long Tomorrow made her the first woman ever shortlisted for the Hugo Award for Best Novel, and, along with C. L. Moore, one of the first two women ever nominated for a Hugo Award. In 2020, she posthumously won a Retro Hugo for her novel The Nemesis From Terra, originally published as "Shadow Over Mars" (Startling Stories, Fall 1944).

On December 31, 1946, at age 31, Brackett married another science fiction writer, Edmond Hamilton, in San Gabriel, California. Fellow LASFS member Ray Bradbury served as best man. Bradbury and Robert Heinlein were long-time close friends of Brackett's. She moved with Hamilton to Kinsman, Ohio.

Edmond Hamilton died in February 1977 in Lancaster, California, of complications following kidney surgery. Brackett died there in March 1978, of cancer, at age 62.