Astronomy The Solar System
Physics & Astronomy
Quiz 24 :
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Q89 Q89 Q89
As our Sun ages, it slowly gets brighter.For example, the Sun is about 30 percent brighter than it was in its infancy (4.5 billion years ago), and it will become about 30 percent brighter in the next 3 billion years or so.Explain how this would affect the definition of a habitable zone in our Solar System.