the same body, and Heraclitus, around 500 B.C., correctly thought that both Mercury and Venus orbited the sun, not Earth.</p>
    <img src='https://i2.wp.com/www.astronomytrek.com/wp-content/uploads/2012/11/mercury-1.jpg?fit=678%2C381&ssl=1'>
    <h2>A year on Mercury is just 88 days long.</h2>
    <p>One solar day (the time from noon to noon on the planet’s surface) on Mercury lasts the equivalent of 176 Earth days while the sidereal day (the time for 1 rotation in relation to a fixed point) lasts 59 Ear