How long is a Martian year?
It’s a year long, if you’re from Mars. To an earthling, it’s nearly twice as long. The red planet takes 687 Earth-days to go around the Sun — compared to 365 days for Earth. Taking into account Mars’ different rotational time (see #13 below) calendars on Mars would be about 670 days long with some leap days needed to keep things square. If you find one, please mail it to me. I’m curious how they worked out the months, given they have two moons. [The initial publication of this fact mistakenly said a Mars calendar would have 687 days.] 13. How long is the average Martian day? A Martian can sleep (or work) and extra half-hour every day compared to you. Mars days are 24 hours and 37 minutes long, compared to 23 hours, 56 minutes on Earth. A day on any planet in our solar system is determined by how long it takes the world to spin once on its axis, making the Sun appear to rise in the morning and sending it down in the evening. 14. What is the largest volcano? The Mauna Loa volcano in Haw
