updated 9:13 AM EST, Thu November 20, 2014 | Filed under: Innovations (CNN) -- After landing a probe on an icy comet and possibly shedding new light on the origins of life on Earth, the European Space Agency (ESA) is now looking at scorching-hot Mercury for its next mission. The innermost planet of our solar system orbits so close to the Sun that, in some instances, surface temperature surpasses 400 °C. Areas of the planet without sunlight, on the other hand, can become as cold as -170 °C. No...
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