How long is "Mars Day"?

The duration of a day on Mars is 24 hours, 37 minutes and 22.663 seconds. A day on Mars is about 40 minutes longer than that on Earth. Compared with other celestial bodies in the solar system, either a day is very short (Jupiter's rotation period is 9 hours, 55 minutes and 29.69 seconds) or a day is very long (the alternation of day and night on Venus is 1 16 days, 18 hours), and the similarity of the length of a day between Mars and the earth is very shocking.

The internal structure of Mars consists of metal core, silicate mantle and crust. There is also a lot of water on Mars, but most of them are concentrated in polar regions and exist in the form of water ice (there is a permafrost layer under the surface). But the most interesting thing is that the length of a day on Mars is almost the same as that on Earth.