How Big Is the Universe Really

Every time someone tells you a star is forty trillion kilometres away, the number slides right off. You want to feel how big space is, and the figures keep getting in the way.

This audiobook walks you outward one step at a time, starting at your own front door and ending at the edge of the observable universe. Each chapter shrinks the cosmos to something you can picture, so the Sun becomes a beach ball on the table, Earth a peppercorn across the room, and our whole galaxy fits on a dinner plate. After every leap you hear a short explanation of how astronomers actually measured it, then a quick recap before the next step out.

By the last chapter the distances hold together in your head, and the size of the universe feels like a place you belong to rather than a void that shrinks you. Press play and let the room grow.