Habitable zone

This artist's rendition provided by NASA shows Kepler-69c, a super-Earth-size planet in the habitable zone of a star like our sun, located about 2,700 light-years from Earth in the constellation Cygnus. (AP Photo/NASA/Ames/JPL-Caltech)

Study: 8.8 billion Earth-size, just-right planets

WASHINGTON (AP) — Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about the size of Earth, orbit […]

11/04/2013

Milky Way drawing

Study: Billions of Earth-size planets in Milky Way

LONG BEACH, Calif. (AP) — Astronomers estimate one in six stars in our Milky Way galaxy has a planet the size of Earth orbiting it. That translates to at least 17 billion Earth-size planets.

01/07/2013

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