Cosmic Dawn: The Untold Story of the James Webb Space Telescope
From NASA Documentaries · 2025
Summary
The behind-the-scenes story of building and launching the James Webb Space Telescope — the largest, most powerful telescope ever made — told by the engineers and scientists who spent decades on it. A feature-length look at solving one of the hardest engineering problems in NASA's history. Best across a unit or a full class period.
Viewer safety
About an hour and a half long — best used across a unit or a full class period rather than a warm-up.
Our rating is a quick teacher-to-teacher guide — preview before showing.
Teaching resources
Discussion questions
Discussion
"Cosmic Dawn" follows the people who built the James Webb Space Telescope over many years.
- Webb is designed to see the very first galaxies. Why do we need such a huge, powerful telescope to do that?
- What are some problems the team had to solve before Webb could work in space?
- Building Webb took decades of teamwork. What does that tell you about big science projects?
Quick work-a-long
Vocabulary: telescope, engineer, test, launch, teamwork.
Try it: Pick one challenge the Webb team faced in the film. Write the problem, one idea they tried, and how they checked whether it worked.

