Goldilocks planet

noun

A planet which orbits in the habitable zone around a star, where temperatures like those on Earth occur, allowing for the possible existence of liquid water and of life.

Meanings

nounGoldilocks planet (plural Goldilocks planets)

plural Goldilocks planets

  1. astronomyA planet which orbits in the habitable zone around a star, where temperatures like those on Earth occur, allowing for the possible existence of liquid water and of life.

Origin

From the children's story Goldilocks, in which one of the bowls of porridge the protagonist tries is neither too hot nor too cold, but just right.

Full word history & related roots →

Translations

Finnish kultakutriplaneetta
  • kultakutriplaneettaplanet with possible existence of liquid water and of life
Polish planeta w strefie Złotowłosej
  • planeta w strefie Złotowłosejplanet with possible existence of liquid water and of life
Spanish planeta Ricitos de Oro
  • planeta Ricitos de Oroplanet with possible existence of liquid water and of life
Cite this entry
APA

Goldilocks planet. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Goldilocks%20planet

MLA

“Goldilocks planet.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Goldilocks%20planet. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Goldilocks planet,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Goldilocks%20planet.

Source: Goldilocks planet on Wiktionary, CC BY-SA 4.0.