17 April 2014. The discovery of Kepler-186f confirms that planets the size of Earth exist in the habitable zone of stars other than our sun.
en.wikipedia.org/wiki/ Kepler-186f
Earthlike Planets
17 April 2014. The discovery of Kepler-186f confirms that planets the size of Earth exist in the habitable zone of stars other than our sun.
en.wikipedia.org/wiki/ Kepler-186f