Inside the colossal telescope built to hear the farthest whispers of space.
Discover how engineers and scientists created the largest radio telescope ever built, from the search for an isolated site in southwest China to the innovations that made it precise enough to track distant radio waves. As FAST begins probing pulsars, hydrogen clouds, dark energy, and possible extraterrestrial signals, each breakthrough reveals why this machine could reshape how we understand the universe.
Love FAST: The Celestial Eye? It’s just the start.
Join now to unlock the whole library — thousands of award-winning documentaries beyond FAST: The Celestial Eye, from the deep ocean to deep space.
Trending Now
- New shows weeklyFresh documentaries land every week.
- Exclusive originalsAward-winning films you can’t stream anywhere else.
- Watch anywherePhone, tablet, web and TV — pick up where you left off.
- No commitmentNo contract. Cancel in a click.
Pick the plan that’s right for you.
Flexible plans, no contracts.
Thousands of documentaries across nature, history, space, and science.
- Watch in 4K on all your devices
- Download and watch offline
- Stream ad-free — cancel anytime
Thousands of documentaries across nature, history, space, and science.
- Up to 4K
- Offline downloads
- Ad-free
Frequently asked questions
Thousands of the world's best documentaries and factual programming — nature, history, science, technology, and biography — including exclusive Curiosity Originals like FAST: The Celestial Eye. Stream it all ad-free, anytime.
FAST: The Celestial Eye streams with every plan. Plans start at $4.17/month.
Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.
Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.