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“What is dark energy?”, “What is dark matter made of?”, “Where are the missing baryons?”, “How do stars explode?”, “What caused the reionization of the Universe?”, “What is the source of the most energetic cosmic rays?”, “Why is the solar system so bizarre?”, and finally “Why is the Sun’s corona so hot?”: these eight are just some of the great mysteries of the cosmos that will hopefully be solved over the next few decades.