Aliens: Defiance - Extravehicular is a comic book short story that was published by Dark Horse Comics in Free Comic Book Day: Serenity in May 2016. It was written by Brian Wood, illustrated and inked by Tristan Jones, colored by Dan Jackson and lettered by Nate Piekos. The comic serves as a tie-in to the 12-issue series Aliens: Defiance, produced by the same creative team. In the Aliens comics line, Aliens: Defiance - Extravehicular was preceded by Aliens: Fire and Stone, published concurrently with Aliens: Defiance, and was followed by Aliens: Life and Death.