TV NOVA - Season 50 Episode 11 : Ancient Earth: Birth of the Sky NOVA - Season 50 Episode 11 : Ancient Earth: Birth of the Sky 7.008/10 by 131 users Today, Earth is enveloped by a thin veil of gas, a narrow band of atmosphere that protects a world covered in lush green vegetation, deep blue oceans, and abundant life. But 4.5 billion years ago, Earth was a very different place: a hellscape of molten lava and barren rock, under relentless bombardment from meteors, and with no atmosphere whatsoever. So how did our familiar blue sky come to be? Breathtakingly realistic animations and a chorus of science experts reveal how the primordial inferno first gave rise to an orange-hued cauldron of toxic gasses that would be deadly to us today. Witness how the first drops of rain splashed down on the searing planet, setting the stage for the evolution of life. And discover how life itself helped create the air we all breathe today. Details Casts Posters Images Title NOVA - Season 50 Episode 11 : Ancient Earth: Birth of the Sky 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 50 :Episode 1 London Super Tunnel London Super Tunnel 2023-02-01 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 2 Star Chasers of Senegal Star Chasers of Senegal 2023-02-08 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 3 Ancient Builders of the Amazon Ancient Builders of the Amazon 2023-02-15 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 4 New Eye on the Universe New Eye on the Universe 2023-02-22 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 5 Weathering the Future Weathering the Future 2023-04-12 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 6 Chasing Carbon Zero Chasing Carbon Zero 2023-04-26 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 7 Saving the Right Whale Saving the Right Whale 2023-05-03 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 8 Hidden Volcano Abyss Hidden Volcano Abyss 2023-05-10 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 9 Your Brain: Perception Deception (1) Your Brain: Perception Deception (1) 2023-05-17 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 10 Your Brain: Who's in Control? (2) Your Brain: Who's in Control? (2) 2023-05-24 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 11 Ancient Earth: Birth of the Sky Ancient Earth: Birth of the Sky 2023-10-04 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 12 Ancient Earth: Frozen Ancient Earth: Frozen 2023-10-11 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 13 Ancient Earth: Life Rising Ancient Earth: Life Rising 2023-10-18 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 14 Ancient Earth: Inferno Ancient Earth: Inferno 2023-10-25 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 15 Ancient Earth: Humans Ancient Earth: Humans 2023-11-01 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 16 Inside China's Tech Boom Inside China's Tech Boom 2023-11-08 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 17 The Battle to Beat Malaria The Battle to Beat Malaria 2023-11-15 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 50 :Episode 18 Lee and Liza's Family Tree Lee and Liza's Family Tree 2023-11-22 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and...