I read from dark to dark horse.

Dark energy is a big (bang) topic

https://en.wikipedia.org/wiki/Dark_energy

https://earthsky.org/space/definition-what-is-dark-energy/

The word of the episode is "dark adaptation".

https://en.wikipedia.org/wiki/Adaptation_(eye)

Theme music from Jonah Kraut

https://jonahkraut.bandcamp.com/

Merchandisi ...