When the Sun was younger, how did its habitable zone compare with its habitable zone today?

Name: When the Sun was younger, how did its habitable zone compare with its habitable zone today?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

When the Sun was younger, it was not as bright as it is now, which means that its habitable zone was closer to the Sun. As the Sun ages, it becomes brighter and hotter, causing its habitable zone to move outward. Therefore, the habitable zone of the young Sun was narrower and closer to the Sun than it is today.

When the Sun Was Younger, How Did Its Habitable Zone