Seventy-five percent of the seafloor remains unmapped and unexplored, but the first few glimpses scientists have gotten of the ocean’s depths have completely revolutionized our understanding of the planet.For show transcripts, go to vox.com/unxtranscriptsFor more, go to vox.com/unexplainableAnd please email us! unexplainable@vox.comWe read every email.Support Unexplainable by becoming a Vox Member today: vox.com/membersPlease take a second to help us learn more about you! vox.com/podcastsurveyLearn more about your ad choices. Visit podcastchoices.com/adchoices