Secrets of Size: Atoms to Supergalaxies - Season 1 - Eps 2: Going Big
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.
About Secrets of Size: Atoms to Supergalaxies

Title: Secrets of Size: Atoms to Supergalaxies
First Air Date: 2022-05-16
Last Air Date: 2022-05-23
Status: Returning Series
Rating: 7.5/10 (from 2 votes)
Language: EN
Seasons: 1
Total Episodes: 2
Network: BBC Four
Genres: Documentary
Production Companies: Unknown
Synopsis
In this mind-bending series, Jim Al-Khalili explores the vast range of size in the universe, from tiny atoms to gigantic, interconnected galaxies.
Cast

Jim Al-Khalili
Self