Tweel (A Martian Odyssey) Tweel (A Martian Odyssey) Tweel (also referred to as a "Tweerl", the exact pronunciation of the word is said to be impossible for humans) is a fictional extraterrestrial from the planet Mars, featured in two short stories by Stanley G. Weinbaum. The alien was featured in "A Martian Odyssey", first published in 1934, and "Valley of Dreams" four months later. Weinbaum died of lung cancer soon after, and a third installment in the series never saw fruition. Tweel remains one of the most recognised aliens in early science fiction, and is said to be an inspiration for aliens in the
Stowaway to Mars a sequel. Stowaway to Mars Stowaway to Mars is a science fiction novel by John Wyndham. It was first published in 1936 as "Planet Plane" (Newnes Limited, London), then serialised in "The Passing Show" as "Stowaway to Mars" and again in 1937 in "Modern Wonder" magazine as "The Space Machine". The novel was written under one of Wyndham's early pen names, John Beynon. It was published by Coronet Books in 1972 as ""Stowaway to Mars" by John Wyndham". . Reviewer Groff Conklin described the first American edition as "an interesting adventure story." The title novella of the collection "Sleepers of