Aviation
How 2 planes collided while in the air into each other killing 351 people
Unlike car crashes and accidents plane crashes rarely occur and when they do occur it’s usually a single plane losing control and crashing to the ground. It’s almost next to impossible for two aircrafts to collide into each, however it still happened.
Controllers on the ground had warned both pilots that there was another plane in the area therefore both pilots knew there was an incoming plane approaching. The accident was eventually blamed on pilot error.
Fortunately for us due to modern technology, better radar systems, and advanced computer software such types of collisions are almost impossible even if the sky is much more crowded today than it was back then.