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Thursday, 15 June 2017

The term ‘Goldilocks Zone’ is often seen news in the context of

  By GK Planet Team       Thursday, 15 June 2017

Goldilocks Zone

The term ‘Goldilocks Zone’ is often seen news in the context of
(a) the limits of the habitable zone above the surface of the Earth
(b) regions inside the Earth where shale gas is available
(c) search for the Earth-like planets in outer space
(d) search for meteorites containing precious metals
Answer: (c) search for the Earth-like planets in outer space

Goldilocks Zone in News

NASA's Kepler space telescope has found eight planets in the Goldilocks zone of their stars, just at the right distance to contain liquid water and, possibly, life.

In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressure. The bounds of the CHZ are based on Earth's position in the Solar System and the amount of radiant energy it receives from the Sun. Due to the importance of liquid water to Earth's biosphere, the nature of the CHZ and the objects within it may be instrumental in determining the scope and distribution of Earth-like extraterrestrial life and intelligence.

The habitable zone is also called the Goldilocks zone, a metaphor of the children's fairy tale of "Goldilocks and the Three Bears", in which a little girl chooses from sets of three items, ignoring the ones that are too extreme (large or small, hot or cold, etc.), and settling on the one in the middle, which is "just right".
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1 comment:

  1. Astronomers with the Harvard-Smithsonian Center for Astrophysics (CfA) have discovered eight new planets within the so-called Goldilocks — or habitable — zone of their stars.

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