TV NOVA - Season 25 Episode 20 : The Perfect Pearl NOVA - Season 25 Episode 20 : The Perfect Pearl 7.008/10 by 131 users For centuries, man has risked both life and life savings to possess the pearl's beauty. Pure and perfect, glowing and dazzling, a pearl is actually a mistake formed when an oyster reacts to an irritant lodged in its shell. Go back to the late 18th century to meet Kokichi Mikimoto, who developed a technique for culturing pearls that's still used today. Travel to a Japanese oyster hatchery to see how technology is advancing pearl cultivation. Watch divers search for the immense pearls found in the world's largest oyster, the Pinctada maxima. See a strand of South Sea perfect pearls worth $2.3 million. And discover little-known facts as authors, zoologists, scientists and pearl experts reveal the pearl's wondrous history. Details Casts Posters Images Title NOVA - Season 25 Episode 20 : The Perfect Pearl Alternative Titles PBS新星Nova, نوا, نووآ, PBS Nova First Air Date 1974-03-03 Last Air Date 2025-09-24 Number of Episodes 1012 Number of Seasons 52 Genres Documentary, Networks PBS, Casts Plot Keywords , Episodes List NOVA Season 25 :Episode 1 Coma Coma 1997-10-07 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 2 Faster Than Sound Faster Than Sound 1997-10-14 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 3 Bomb Squad Bomb Squad 1997-10-21 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 4 The Proof The Proof 1997-10-28 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 5 Wild Wolves With David Attenborough Wild Wolves With David Attenborough 1997-11-11 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 6 Super Bridge Super Bridge 1997-11-12 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 7 Treasures of the Sunken City Treasures of the Sunken City 1997-11-18 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 8 Avalanche! Avalanche! 1997-11-25 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 9 Danger in the Jet Stream Danger in the Jet Stream 1997-12-02 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 10 Night Creatures of the Kalahari Night Creatures of the Kalahari 1998-01-06 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 11 Mysterious Mummies of China Mysterious Mummies of China 1998-01-20 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 12 Supersonic Spies Supersonic Spies 1998-01-27 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 13 Animal Hospital Animal Hospital 1998-02-03 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 14 The Brain Eater The Brain Eater 1998-02-10 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 15 Everest - The Death Zone Everest - The Death Zone 1998-02-24 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 16 Search for the Lost Cave People Search for the Lost Cave People 1998-03-31 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 17 Warnings from the Ice Warnings from the Ice 1998-04-21 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 18 Crocodiles! With David Attenborough Crocodiles! With David Attenborough 1998-04-28 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 19 The Truth About Impotence The Truth About Impotence 1998-05-12 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 25 :Episode 20 The Perfect Pearl The Perfect Pearl 1998-12-29 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and...