The discovery of a solar system as old as the Milky Way and with five Earth-like planets could shed new light on the possibility of ancient life forms in the galaxy.
The planets orbit around Kepler 444, which at 11.2 billion years old, is more than twice as old as the sun, according to researchers at the University of Birmingham in Britain who published their findings today in the Astrophysical Journal.
Despite being 117 light-years away from Earth, in the direction of the constellations Cygnus and Lyra, researchers were able to learn more about the solar system using a practice called astroseismology.
Listening to the hum of Kepler 444, the team was able notice the slight changes in brightness created by the noise, which enabled them to measure the star’s diameter, mass and calculate its approximate age.
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