The Sky at Night S69E6 — The Expanding Universe

The Sky at Night•Season 69•Episode 6

The Expanding Universe

Sep 8, 202529 min

The team explores one of the greatest discoveries of modern astronomy - that our universe is expanding - and the new questions it raises about how the cosmos works. In the 1920s, astronomers studying galaxies realised they were moving away from us, with the

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Season 69 Episodes8

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Asteroid Strike?

Secrets of the Red Planet still

Secrets of the Red Planet

Greenwich: A Journey through Space and Time still

Greenwich: A Journey through Space and Time

Exoplanets - Strange New Worlds still

Exoplanets - Strange New Worlds

Queen of Pulsars still

Queen of Pulsars

The Expanding Universe still

The Expanding Universe

Brits in Space still

Brits in Space

Space Mysteries: The Sky at Night Meets Curious Cases still

Space Mysteries: The Sky at Night Meets Curious Cases

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Episode Summary

"The Expanding Universe" is episode 6 of The Sky at Night season 69. It aired on September 8, 2025.

Next: E7 · Brits in Space Best of Season 69