He is probably the only Missourian with both a crater on Mars and an asteroid named after him. He was not an astronomer, nor an astronaut. But he was known as the “Dean of Science Fiction Writers.”
HeinleinRobert Heinlein as a baby, top left in baby carriage, at Butler. Heinlein with his parents at the Naval Academy at Annapolis, Md., circa 1929. Robert in his Navy uniform, bottom left. Three future sci-fi greats work together at the Philadelphia Naval Ship yard in 1944: Robert Heinlein, L. Sprague de Camp and Isaac Asimov.
(Note - I can't access the complete article because a digital subscription is needed...still you get the idea!)