An artist's conception of Kepler-444 with a planet passing across it (Tiago Campante/Peter Devine) Astronomy and Astrophysics 

Earth-sized Planets, Ancient Star System Found

An ancient solar system, dating back to the dawn of the Milky Way Galaxy, has been discovered by an international team of astronomers. Researchers have found five Earth-sized planets in orbit around a Sun-like star called Kepler-444 that, at 11.2 billion years old, is the oldest star with a planetary system ever found. This discovery suggests that ancient worlds are out there, and some of them may support life. Each of Kepler-444’s planets is a little smaller than Earth. “We’ve never seen anything like this – it is such an…

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