https://therepository.org/abyss-report/The mystery a single dive solved, read off the instruments: ROV telemetry, sonar and spectrogram.enhttps://therepository.org/abyss-report/ep08-the-52-hz-whale-paper-never-used-the-word-lonely/https://therepository.org/abyss-report/ep08-the-52-hz-whale-paper-never-used-the-word-lonely/Tue, 08 Sep 2026 02:00:13 +0000Since 1989 a single source in the North Pacific has been making a tone near 52 hertz. It was tracked for twelve consecutive seasons by the US Navy's SOSUS arrays and published in Deep-Sea Research I in 2004. That paper is thirteen pages long, and the word lonely does not appear in it once.https://therepository.org/abyss-report/ep07-the-worm-s-name-stopped-being-correct-before-most-people-heard-it/https://therepository.org/abyss-report/ep07-the-worm-s-name-stopped-being-correct-before-most-people-heard-it/Wed, 02 Sep 2026 22:48:11 +0000One thousand six hundred and eighteen metres down, on the same dive as this channel's last episode, a robot finds a worm colony living directly on solid methane -- rock that catches fire if you bring it to the surface. The worm has a scientific name printed in hundreds of papers since the year two thousand. Checked against the registry that actually decides species names today, that name is listed as a superseded synonym.https://therepository.org/abyss-report/ep06-the-lake-at-the-bottom-of-the-sea/https://therepository.org/abyss-report/ep06-the-lake-at-the-bottom-of-the-sea/Fri, 28 Aug 2026 19:00:06 +0000At 1,624 metres in the Gulf of Mexico there is a lake, with a shoreline, a beach and a rim of drowned mussels. In 2017 a NOAA robot parked over it for twenty-five minutes with two cameras running, and the log the watch typed that afternoon ends in a question mark.https://therepository.org/abyss-report/ep05-the-squid-nobody-has-ever-caught/https://therepository.org/abyss-report/ep05-the-squid-nobody-has-ever-caught/Thu, 27 Aug 2026 16:29:39 +0000In 2021 a NOAA robot spent four minutes filming a five-metre squid at 2,382 metres in the Gulf of Mexico. No intact adult of this animal has ever been collected - everything science knows about it comes from video like this. Which makes what the ship's log did with the name a bigger problem than it looks.https://therepository.org/abyss-report/ep02-nobody-has-ever-heard-the-bloop-including-you/https://therepository.org/abyss-report/ep02-nobody-has-ever-heard-the-bloop-including-you/Wed, 26 Aug 2026 18:43:54 +0000The most famous mystery sound in the ocean is a recording running sixteen times too fast. Undo that, and the event lasted two minutes and forty-one seconds and sat between thirteen and twenty-six hertz - below the bottom of human hearing. Every version anyone has ever played is a translation.https://therepository.org/abyss-report/ep04-nobody-could-name-the-golden-orb-so-they-took-it/https://therepository.org/abyss-report/ep04-nobody-could-name-the-golden-orb-so-they-took-it/Wed, 26 Aug 2026 16:14:37 +0000In 2023 an ROV found a smooth gold dome stuck to a rock 3,250 metres down in the Gulf of Alaska. Nobody watching the live feed could say what it was - and the control room recording of them failing to name it is public domain, timestamped, and as far as I can tell has never been transcribed. It took 965 days and a genome to answer.https://therepository.org/abyss-report/ep01-the-type-specimen-of-this-species-is-a-video-file-and-the-animal-swam/https://therepository.org/abyss-report/ep01-the-type-specimen-of-this-species-is-a-video-file-and-the-animal-swam/Wed, 26 Aug 2026 02:39:07 +0000Almost every named animal on Earth has one physical individual set aside in a museum, in a jar, as the standard that decides what the name means. This one has a video file instead — catalogued at the Smithsonian as USNM 1607331. The animal it shows was alive the last time anyone saw it: 10 April 2015, about 3,900 metres down off Puerto Rico. Nobody has seen it since.