
Operation Space Station: High-Risk Build Preview
Preview: Season 52 Episode 19 | 30sVideo has Closed Captions
Astronauts and Mission Control relive terrifying moments during construction of the ISS.
From ammonia leaks to Space Shuttle disasters to a spacewalk gone terribly wrong, astronauts and Mission Control insiders relive the most terrifying moments during construction of the International Space Station.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust and PBS viewers.

Operation Space Station: High-Risk Build Preview
Preview: Season 52 Episode 19 | 30sVideo has Closed Captions
From ammonia leaks to Space Shuttle disasters to a spacewalk gone terribly wrong, astronauts and Mission Control insiders relive the most terrifying moments during construction of the International Space Station.
Problems playing video? | Closed Captioning Feedback
Where to Watch NOVA
NOVA is available to stream on pbs.org and the PBS app.
Buy Now

NOVA Labs
NOVA Labs is a free digital platform that engages teens and lifelong learners in games and interactives that foster authentic scientific exploration. Participants take part in real-world investigations by visualizing, analyzing, and playing with the same data that scientists use.Providing Support for PBS.org
Learn Moreabout PBS online sponsorship- [Person on Radio] And lift off.
The International Space Station is underway.
(dramatic music) - In a space mission, the environment is trying to kill you.
- I knew I had a problem.
This is when it's time to go to work.
- [Narrator] "Operation Space Station: High-Risk Build."
- When we humans want to, we can do some pretty remarkable things together peacefully.
- [Narrator] On "NOVA."
(soft music)
The Failure That Led to the Columbia Tragedy
Video has Closed Captions
Clip: S52 Ep19 | 1m 35s | A small piece of insulation caused catastrophic damage. (1m 35s)
How Astronauts Avoided Disaster Building the International Space Station
Video has Closed Captions
Clip: S52 Ep19 | 4m 30s | A dangerous spacewalk, a toxic leak, and a breathtaking view of Earth. (4m 30s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
- Science and Nature

Capturing the splendor of the natural world, from the African plains to the Antarctic ice.

- Science and Nature

David Attenborough tells the story of the wildlife blockbuster that would change his life forever.

New Episode









Support for PBS provided by:
National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust and PBS viewers.



