What Fills the Universe’s Emptiest Spaces? cover art

What Fills the Universe’s Emptiest Spaces?

What Fills the Universe’s Emptiest Spaces?

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Cosmic voids aren’t truly empty — they hold a faint mix of dwarf galaxies, thin gas, and dark matter, at just one-fifth the universe’s average density.

In this episode, we explore what these vast “cosmic deserts” are made of and what it might mean if life or intelligence emerged in such isolated regions of space.
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