List server
Season
- Season 1 1999-04-12
- Season 2 1970-01-01
- Season 3 1970-01-01
- Season 4 2002-01-01
- Season 5 2003-05-11
- Season 6 2004-04-12
- Season 7 2005-01-01
- Season 8 2006-01-01
- Season 9 2007-01-01
- Season 10 2008-01-01
- Season 11 2009-08-15
- Season 12 2010-02-23
- Season 13 2011-10-06
- Season 14 2012-08-17
- Season 15 2013-01-01
- Season 16 2014-03-30
- Season 17 2015-01-10
- Season 18 2016-01-09
- Season 19 2017-01-15
- Season 20 2018-01-14
- Season 21 2019-01-20
- Season 22 2020-01-18
- Season 23 2021-01-04
- Season 24 2022-01-23
- Season 25 2023-01-22
- Season 26 2024-01-21
Season 26 Episode
- Season 19 Secrets of Centenarians
- Season 19 China the Great Dragon: Exodus of 100 Million Farmers
- Season 19 Onbashira: Mystery behind the Sacred Trees
- Season 19 Negotiations on the Northern Territories
- Season 19 Medical Revolution: Glucose Spike Uncovering a Hidden Threat
- Season 19 Decommissioning Fukushima: Ballooning Costs
- Season 19 China the Great Dragon: Feeding Personal Wealth to Growth Industries
- Season 19 Never-Ending Man: Hayao Miyazaki
- Season 19 Inside the KIMDOM: North Korea Exposed
- Season 19 Precision Medicine: The Cancer Treatment Revolution
- Season 19 Bacchan: Granny's Table
- Season 19 What You Taught Me About Happiness
- Season 19 Money World: Fate of Capitalism - Part 1
- Season 19 Money World: Fate of Capitalism - Part 2
- Season 19 Money World: Fate of Capitalism - Part 3
- Season 19 Moon Bear Chronicle: Unraveling the Mysteries
- Season 19 China the Great Dragon: China's E-commerce Revolution
- Season 19 China the Great Dragon: Citizens Battle to Clear the Skies
- Season 19 The Symbolic Emperor
- Season 19 Dad, Are You Watching Us?
- Season 19 A Tiny Universe at Our Feet
- Season 19 A Mother Panda's Love: The Secret Behind Successful Breeding
- Season 19 Japan's Constitution: The Birth of a Peace-Loving Nation
- Season 19 Discovery of the Century: The Great Dinosaur of Japan
- Season 19 Underwater Universe of the Orda Cave
- Season 19 Revisiting the Dhaka Terror Attack
- Season 19 A Tale of Love and Honor: Life in Gion
- Season 19 AI: Into the Real World
- Season 19 Visualizing Atomic Deaths: New Facts on Hiroshima's Victims
- Season 19 Tokyo Black Hole: Year Zero in Post-WWⅡ Japan
- Season 19 Unwitting Combatants: The Battle of Karafuto
- Season 19 Okinawa's Nuclear Secrets
- Season 19 Mega Crisis: Skyscrapers in Aseismic Danger
- Season 19 Mega Crisis: Forecasting Super Typhoons
- Season 19 Science to the Rescue! The Science of Adolescence
- Season 19 Science to the Rescue! The Science of Marital Misunderstanding
NHK Documentary - Season 19 Episode 25 Underwater Universe of the Orda Cave
0.00 57 minutes Located beneath Russia's Ural Mountains, Orda Cave is legendary among divers for its unique beauty. The cave's waters are clearest in winter, when the land above lies frozen. With temperatures approaching minus 40 degrees, NHK attempts to film the cave in ultra-high definition 4K for the first time ever. Scientists give them insight into the cave's origins, enabling the crew to uncover the miraculous story of how the cave was naturally formed 300 million years ago by climate change and a shifting landscape.
