This is an automated archive.

The original was posted on /r/todayilearned by /u/f_GOD on 2023-08-07 08:28:01+00:00.

Original Title: TIL because of its slow rotation one “day” on mercury equals 59 earth days. It orbits the Sun in a 3:2 spin–orbit resonance, rotating on its axis exactly three times for every two revolutions around the Sun meaning a day lasts twice as long as its year.