Ever since humanity has been able to launch projectiles into space to take nosey pictures that make us all feel insignificant, a major priority has been to somehow communicate with any alien life forms that might come across this space detritus and wonder who shot a space probe right into their upper atmosphere. Using…

PALAOA, the Perennial Acoustic Observatory in the Antarctic Ocean, listens to the waters below Antarctica for the sounds of whales and other marine mammals amidst a soundscape of constantly shifting ice. Here's what they're hearing right now.