Secrets of Size: Atoms to Supergalaxies

S01E02 Going Big

In the series finale, Jim explores increasingly massive cosmic formations, unveiling groundbreaking insights into the universe. He starts with the heliosphere, an immense cloud of solar plasma that envelops and safeguards our solar system, shedding light on the conditions that allow life to thrive. Moving on, Jim encounters the Milky Way, our colossal galaxy, shaped by the gravitational pull of dark matter. He learns from trailblazing scientist Adrian Fabian about the supermassive black hole at the galaxy's core, which produces the deepest sound detectable in the cosmos, revealing its mysterious nature.