From How the Universe Works to NASA's Unexplained Files, catch all these docu-series that delve into astronomy and innovative space missions on Discovery+ and OTTplay Premium.

Space documentaries
Last Updated: 06.15 PM, Aug 29, 2025
Are you curious to know more about the universe and outer space? Well, Discovery+ has a bunch of mind-boggling documentaries like How the Universe Works, NASA's Unexplained Files, and more that explore the cosmos and answer some of humanity's biggest questions. People have always been captivated by stars and the solar system, and these documentaries promise to dig into space mysteries, from our first steps into space to wild theories about ancient aliens. Watch them all through OTTplay Premium.
Through 11 seasons, this show explores the natures of stars, galaxies, planets, moons and investigates how they were formed. The makers use computer-generated imagery to explore cosmic phenomena like black holes, supernovas, and the unseen scaffolding of dark matter and dark energy that shape the cosmos. It even delves into the Big Bang that happened approximately 13.8 billion years ago.
This docu-series was first released in 2012 and has 6 seasons till date. The show explores mysterious and puzzling events that were captured by NASA's cameras, telescopes, and astronauts during their space explorations. These footage prompt scientists to investigate strategic phenomena, alleged UFO sightings, and potential evidence of life beyond Earth.
This docu-series dives into the popular conspiracy theories about the Apollo moon landing. The show, which was originally aired in 2019, aims to investigate whether the 1969 lunar landing was faked. The show features retired astronaut Leland Melvin and former FBI agent Chad Jenkins as they examine the claims of moon landing hoax proponents, including author Mike Bara, analysing evidence and applying scientific reasoning.
This documentary explores India's Gaganyaan program, and its ambitious mission to send astronauts into space in their own rocket and spacecraft and return them safely to Earth. This program aims to make India the 4th nation to achieve human spaceflight, showcasing the nation's expertise and technological developments. Gaganyaan leverages India's own capabilities and the intellectual power of India's research institutions.
This docu-series explores the modern space competitions across the globe, mining the moon, and asteroid hunting by private companies and scientists. The 3-episode series features SpaceX founder Elon Musk's perspectives, discusses the economic potential of lunar resources, and examines efforts to prevent potentially devastating asteroid impacts.
Q. Are there any documentaries about space?
A. Yes, Discovery+ (OTTplay Premium) has a vast collection of documentaries that explore space missions, the cosmos, and astrophysics.
Q. Which are the space documentaries to watch now?
A. From How the Universe Works to NASA's Unexplained Files, catch more such documentaries on Discovery+ (OTTplay Premium) that explore space mysteries.
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