“Kepler’s Sweet Spot” –Earth at Center of Milky Way’s ‘Habitable Zone’

 

Milky Way Galaxy

 

If advanced, space-faring alien life exist anywhere in the Milky Way, odds are they will live in the Galactic Habitable Zone (GHZ). And if they want to explore the Milky Way searching for other life-bearing planets, similar to Earth, they would only have to explore the GHZ, not the whole of the Galaxy.

(more…)