Dark Horse actually did a "What If?" comic where something like that happened....Luke fired his torpedoes, but due to a fault in them they didn't explode when got to the reactor...so the Death Star survived. Not spoiling the rest of it, though... starwars.fandom.com/wiki/Star_Wa...

Star Wars Infinities

Star Wars Infinities is a group of four-part comic book series published by Dark Horse Comics. The comics tell the stories of alternate histories to the original trilogy, therefore making them non-can...