TV show availability guide
Secrets of Size: Atoms to Supergalaxies
In this mind-bending series, Jim Al-Khalili explores the vast range of size in the universe, from tiny atoms to gigantic, interconnected galaxies.
2022 7.7/10 community score 1 season · 2 episodes Returning Series
- Documentary
Viewing market
Country-level availability
Where to watch in United States
4 platforms currently listed across all viewing options
Data checked 25 Oct 2026, 12:01 UTC
Included with subscription
2Streaming providerMagellan TVNo linked platform guide yetDetails unavailable Streaming providerXive TV Documentaries Amazon ChannelNo linked platform guide yetDetails unavailable
Free with ads
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Series schedule
Seasons and episode dates
A concise series timeline, including the latest aired episode and the next date currently listed.
- First aired
- Seasons
- 1
- Episodes
- 2
- Status
- Returning Series
Latest aired episode
S1 E2
Going Big
Aired 59 min
In the concluding episode of the series, Jim encounters ever larger cosmic structures to reveal the latest breakthroughs in our understanding of the universe. For example, there's the heliosphere, a vast cloud of solar plasma that surrounds and protects the solar system. Its unique physics help us understand why life is possible. Larger still, Jim comes face to face with our galactic home the Milky Way, a monstrous structure sculpted by the gravitational forces of dark matter. Jim finds out from pioneering researcher Adrian Fabian about the black hole at its centre, whose strange behaviour includes emitting the lowest note that can be heard in the cosmos.
Next listed episode
No upcoming episode date is currently listed.
Season guide
Most recent seasons first
Season 1
2 episodes
First episode aired
About these dates: Air dates describe the series schedule and may change. They do not confirm that an episode is available on the same date from the providers listed above.
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