# Hartle-Hawking state

> English word · Noun

## Definitions
1. A hypothetical state of the universe prior to the Planck epoch, in which time did not exist, only space.

## Etymology
Named after James Hartle and Stephen Hawking.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/hartle-hawking-state