Imagine holding a flashlight above your desk and shining it down at the surface. The area it lights up is pretty small. The beam produces a tightly contained circle. Now, imagine climbing onto the roof of your house and pointing that same flashlight down toward the ground. A much larger area brightens. You can see a lot more.
“That’s sort of what we’re doing with sound,” says Derek Sowers, mapping operations manager for the Ocean Exploration Trust and lead author of a study detailing how scientists just
