Investigators might have just found the missing piece of the puzzle in the deadly Spain train crash—a massive chunk of undercarriage called a bogie was spotted near the tracks. Experts say this could be the key to figuring out what went wrong, since it’s basically the part that keeps the train rolling. The wildest part? It flew out of the train like a bullet during the crash. Stay tuned for what they uncover next! #Transportation #SpainTrainCrash #BreakingNews