Not many people can say they've been diving out of a cage with great white sharks. These divers had a special encounter with one while diving off Catalina Island, California.
Caladan Oceanic Expeditions found the USS *Roberts* in June more than 1,000 feet deeper than USS *Johnston*, the ship previously considered the world's deepest wreck.
With the sunflower sea star functionally extinct in most of its natural habitit, scientists are working to understand exactly what happend—and how to reverse it.