Europe has approved the launch of a deep-space observatory to sniff out habitable Planets in other star systems, along with any life forms they may host. Illustration of the planetary system around an M dwarf called Kepler-42  [Credit: NASA/JPL-Caltech]"The PLATO mission will address fundamental questions such as 'how common are Earth-like planets?' and 'is our solar system unusual or even unique?'," the University of Warwick,...

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