Earth is often referred to as a Goldilocks planet. This has traditionally been connected to Earth’s proximity to the sun allowing liquid water to exist on its surface. In fact, that assumption and some others led to something called the Drake Equation developed in Greenbank, West Virginia in 1961. It was a complex equation that calculated the number of planets in orbit around a star at the ideal distance for the sustained existence of intelligent life. The number of planets postulated based from the Drake Equation were 1000 to 100,000,000 in the Milky Way galaxy. More recent data from Kepler has put the estimate to around 12-17 billion Earth like planets in the Milky Way.
read more 15 “Goldilocks” Factors That Allow Life on Earth to Exist.
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