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3rd rock from the sun

1) planet earth

2) popular sit-com

3) the fallacious description of the earth being a dead rock hurting through space a 140 miles a second around the milky way galaxy. When we are on a living planet, the soil and oceans are alive with microbes, plants trees and animals, in a habital zone (see also goldilocks zone)
Earth is called the 3rd rock from the sun, however, we are actually on a living, habitable planet in the goldilocks zone, from our parent star in the solar system
by Modern Women January 7, 2026
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