Potentially Habitable Earth-like Planets Abundant

    Published: 06-16-2009
    Views: 8,658
    New research of Kepler data shows that one-fifth of all sun-like stars have potentially habitable Earth-sized planets orbiting them.

      The now-retired Kepler spacecraft has revealed that 1 in every 5 sun-like stars has an Earth-sizedplanet orbiting within the habitable zone.  So breaking it down—when you look up at the sky, you can see the closest sun-like star with an Earth-size exoplanet with the naked eye because it’s only 12 light years away.  NASA says the fact that 1/5 of all stars like our sun have a potentially habitable planet is an important find because the distance of these planets from us will influence the size and kind of telescope astronomers build to replace the now-defunct Kepler telescope.  But remember these planets are only “potentially” habitable; we still have to consider whether they have a thick enough atmosphere and liquid water to support life.