20 Days on Mercury: A Ten Year Retrospective

One year on Earth (365 days) is four years on Mercury.  Mercury revolves around the sun relatively quickly: once every eighty-eight Earth days.  While the years are relatively short on Mercury, the days are long—twice as long.  One day on Mercury takes two years on Mercury, which is to say, it takes two solar revolutionsContinue reading “20 Days on Mercury: A Ten Year Retrospective”