8/16/2023 0 Comments Goldilocks galaxy![]() However, other conditions of the planet itself can affect its ability to harbour liquid water. In our solar system, the habitable zone exists between Venus (on the warm side) and Mars (on the cold). Named for the “not too hot, not too cold, but just right” statement, the Goldilocks Zone (or habitable zone) represents a zone around a star that has the right conditions to allow for liquid water (between 0 oC and 100 oC). Petigura/UC Berkeley, Howard/UH-Manoa, Marcy/UC Berkeley One of the ideas that has become well developed, at least for human life, is the idea of the Goldilocks Zone. They look at a wide number of factors including temperature, pressure, moisture, chemical composition, stellar radiation (e.g. ![]() Therefore, Earth sustains life in (what we perceive to be) a wide range of temperatures.īut what does this tell us about the possibility of life forming in our solar system and in other solar systems now being discovered? The Goldilocks Zoneįor many decades, astrobiologists have been studying and developing models for how life can form on other planets. On the other hand, our hot equatorial regions can see temperatures as hot as 54 oC (Death Valley, U.S.A. This is an average temperature across all regions of the earth over the entire year - and is consistent with the average temperature for many parts of Ontario!Įarth’s coldest regions, the north and south poles, can see temperatures as cold as -89 oC (Vostok Station, Antarctica). Currently, the average temperature of our planet is about 0.9✬. Did you know that the habitable zone of a solar system is the range of distance from sun that is “not too hot, not too cold, but just right” for life?Įarth has seen a tremendous amount of temperature change since it was formed over 4 billion years ago.
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