Researchers are racing to complete digitization of ancient cave art in a submerged Mediterranean cavern as rising sea levels and plastic pollution threaten to scrub them from the annals of history.
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.