Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy The zone around a
star where aplanet could experience temperatures like those onEarth , allowing for thepossible existence of liquid water and of life.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[After the story of Goldilocks and the Three Bears, in which the young girl Goldilocks enters the bears' house during their absence, tastes their bowls of porridge, and finds one too hot, another too cold, but the last one just right.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
So called because, like the third of the three bowls of porridge in the fairy tale Goldilocks, it is neither too hot nor too cold, but just right.
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Examples
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dinkum commented on the word Goldilocks zone
WORD: Goldilocks zone
DEFINITION: ' In astronomy and astrobiology, the circumstellar habitable zone (CHZ) (or simply the habitable zone), colloquially known as the <b>Goldilocks zone</b>, is the region around a star within which planetary-mass objects with sufficient atmospheric pressure can support liquid water at their surfaces. '
-- Wikipedia << http://en.wikipedia.org/wiki/Circumstellar_habitable_zone >>
See also: Goldilocks planet
<< http://en.wikipedia.org/wiki/Goldilocks_planet >>
EXAMPLES:
' The "<b>Goldilocks problem</b>," as it would come to be known, considers why Mars, Venus and Earth, while formed at the same time and from similar raw materials, have such different climates—with only Earth being "just right."
' To support life, a "<b>Goldilocks planet"</b> must be in the habitable "<b>Goldilocks zone</b>" around its sun. The latest study, led by astronomy professor Geoffrey Marcy of the University of California, Berkeley, estimates as many as 40 billion Goldilocks planets. '
<b><i>The Wall Street Journal</i></b>, Nov. 15, 2013 (Weekend print edition, 11/16-17/2013)
<< http://online.wsj.com/news/
' The area named for the girl in the fairy tale is neither too close nor too far from a sun, making liquid water possible and planets habitable. In our solar system, that's roughly the orbital band between Mars and Venus. '
-- The Virginian-Pilot. "We might have distant neighbors." November 8, 2013.
>>
November 12, 2013
vendingmachine commented on the word Goldilocks zone
The search for habitable, alien worlds needs to make room for a second "Goldilocks," according to a Yale University researcher.
For decades, it has been thought that the key factor in determining whether a planet can support life was its distance from its sun. In our solar system, for instance, Venus is too close to the sun and Mars is too far, but Earth is just right. That distance is what scientists refer to as the "habitable zone," or the "Goldilocks zone."--Science Daily, August 19, 2016
August 24, 2016