The Sky at Night - Season 69 - Eps 6: The Expanding Universe

2025-09-0829 min⭐ 8.3/10

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 most distant ones receding the fastest. The conclusion was revolutionary: space itself was stretching, and the universe was expanding in every direction. But once this discovery was made, a new challenge emerged – how fast is the universe expanding, and what could that tell us about its age, size and ultimate fate?

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About The Sky at Night

The Sky at Night

Title: The Sky at Night

First Air Date: 1957-04-24

Last Air Date: 2025-10-13

Status: Returning Series

Rating: 8.3/10 (from 13 votes)

Language: EN

Seasons: 70

Total Episodes: 846

Network: BBC Four

Genres: Documentary, News

Production Companies: Unknown

Synopsis

Your monthly journey through the fascinating world of space and astronomy with the latest thinking on what's out there in space and what you can see in the night sky.

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