Short stories by Robert A. Heinlein
Robert Anson Heinlein was an American novelist and science fiction writer. Often called "the dean of science fiction writers", he is one of the most popular, influential, and controversial authors of "hard science fiction".
He set a high standard for science and engineering plausibility and helped to raise the genre's standards of literary quality. He was the first SF writer to break into mainstream, general magazines such as The Saturday Evening Post, in the late 1940s. He was also among the first authors of bestselling, novel-length science fiction in the modern, mass-market era.
Also wrote under Pen names: Anson McDonald, Lyle Monroe, Caleb Saunders, John Riverside and Simon York.
Listing 3 stories.
When a man known as the Unmarried Mother enters a bar in 1970s New York, he gets roped into a time travel quest bent on recovering his long-lost child and finding his old lover.
A Boy Scout and his loyal dog emigrate to a human colony on Venus.
A stranger from the faraway future appears in a young man's room in 1952 with an urgent mission.