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The basic time periods from which the calendar is constructed are the Martian solar day (sometimes called a sol) and the Martian vernal equinox year.The sol is 39 minutes 35.244 seconds longer than the Terrestrial solar day, and the Martian vernal equinox year is 668.5907 sols in length (which corresponds to 686.9711 days on Earth).
A general rule for comparing periodic salaries to hourly wages is based on a standard 40-hour work week with 50 weeks per year (minus two weeks for vacation). (Example: $40,000/year periodic salary divided by 50 weeks equals $800/week. Divide $800/week by 40 standard hours equals $20/hour).
In each quarter there are three months of 42 sols and a fourth month of 41 sols. The pattern of seven-day weeks repeats over a two-year cycle, i.e., the calendar year always begins on a Sunday in odd-numbered years, thus effecting a perpetual calendar for Mars. [25]
The crew of a NASA mission to Mars emerged from their craft after a yearlong voyage that never left Earth. The four volunteer crew members spent more than 12 months inside NASA's first simulated ...
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The purpose of the detailed research studies is to determine what is required to keep a space flight crew happy and healthy during an extended mission to Mars and while living on Mars. [7] Research into food, crew dynamics, behaviors, roles and performance, and other aspects of space flight and a mission on Mars itself is the primary focus.
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The gravity of Mars is about 38% of Earth's gravity at the surface, [11] about 3.7 metres per second 2. [12] This can be simulated for short time by an aircraft following a flight profile that causes this type of acceleration. [ 13 ]