3+ Hours of Fascinating Space Documentaries

4 back-to-back feature length episodes of the groundbreaking series 'Secrets of the Universe', full of incredible facts, discoveries and mysteries of the infinite world of space.

Courtesy of Free Documentary Space on YouTube. Watch on YouTube ↗

More Space & Cosmos Documentaries

Life Beyond II: The Museum of Alien Life (4K)2020•38m•4K•★9.2Life Beyond: Visions of Alien Life (4K)2024•1h 48m•4K•★9.1Death of the Universe (4K)2019•29m•4K•★9Shouting at Stars: A History of Interstellar Messages2022•32m•HD•★8.8Why Finding Aliens Could Doom Humanity2026•27m•HD•★7.8The Artemis Program Embarks on an Ambitious Plan to Return Humans to the Moon to Stay | Blueprint2025•52m•HD•★7.7The Problem With Elon Musk2024•43m•HD•★7.7Is ACTION The Most Fundamental Property in Physics?2021•20m•HD•★7.7Brian Cox: The Next Space Frontier2025•25m•4K•★8.4Earthrise: The First Lunar Voyage2015•55m•HD•★8.0The Ongoing Search for Alien Life2023•48m•HD•★8.0Is the Universe Actually Two-Dimensional?2025•1h 0m•HD•★8.0