A submarine’s periscope is a useful reconnaissance tool, but it puts the vessel at risk since it can only be used when the sub surfaces. As an alternative, researchers at Johns Hopkins University have created a waterproof drone that can float up from the murky depths and then take to the skies to provide an aerial view.
You’ve heard that we know more about space than we do the deep ocean. But did you know it’sso unexplored that scientists discover new species just 200-500 feet down, sometimes at a rate of 14 an hour? A (sort of) manmade enemy threatens those efforts though, and they can’t kill, study, and eat it fast enough.