As many as six billion Earth-like planets in our galaxy, according to new estimates – Phys.org

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As many as six billion Earth-like planets in our galaxy, according to new estimates – Phys.org

To be considered Earth-like, a planet must be rocky, roughly Earth-sized and orbiting Sun-like (G-type) stars. It also has to orbit in the habitable zones of its star—the range of distances from a star in which a rocky planet could host liquid water, and pote…
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