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  2. Darian calendar - Wikipedia

    en.wikipedia.org/wiki/Darian_calendar

    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).

  3. Timekeeping on Mars - Wikipedia

    en.wikipedia.org/wiki/Timekeeping_on_Mars

    The corresponding values for Earth are currently 23 h 56 m 4.0916 s and 24 h 00 m 00.002 s, respectively, which yields a conversion factor of 1.027 491 2517 Earth days/sol: thus, Mars's solar day is only about 2.75% longer than Earth's; approximately 73 sols pass for every 75 Earth days.

  4. Mars sol - Wikipedia

    en.wikipedia.org/wiki/Mars_sol

    A Martian year is approximately 668.6 sols, equivalent to approximately 687 Earth days [1] or 1.88 Earth years. The sol was adopted in 1976 during the Viking Lander missions and is a measure of time mainly used by NASA when, for example, scheduling the use of a Mars rover .

  5. Timeline of Opportunity - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_Opportunity

    Opportunity landed in Meridiani Planum at , about 25 kilometers (16 mi) downrange (east) of its intended target on January 25, 2004, at 05: Although Meridiani is a flat plain, without the rock fields seen at previous Mars landing sites, Opportunity rolled into an impact crater 22 meters in diameter, with the rim of the crater approximately 10 meters (33 ft) from the rover. [4]

  6. Mars Year 1 - Wikipedia

    en.wikipedia.org/wiki/Mars_Year_1

    This system consists of uniform time units. However, Mars Year sols may be confused with rover mission times that are also expressed in sols. Unlike in the day vs. sol distinction, "Mars Year" has no unique Latin term. Start and End dates of Mars Years were determined for 1607–2141 by Piqueux et al. Earth and Mars dates can be converted in ...

  7. Chinese rover helps find evidence of ancient Martian shoreline

    www.aol.com/news/chinese-rover-helps-evidence...

    Like Earth and our solar system's other planets, Mars formed about 4.5 billion years ago. At the time the ocean apparently existed, it might already have begun its transition away from being a ...

  8. Transit of Earth from Mars - Wikipedia

    en.wikipedia.org/wiki/Transit_of_Earth_from_Mars

    Transits of Earth from Mars usually occur in pairs, with one following the other after 79 years; rarely, there are three in the series. The transits also follow a 284-year cycle, occurring at intervals of 100.5, 79, 25.5, and 79 years; a transit falling on a particular date is usually followed by another transit 284 years later.

  9. Elon Musk reveals first Mars mission date as China brings ...

    www.aol.com/elon-musk-reveals-first-mars...

    The SpaceX boss said the launch date is scheduled for when the next Earth-Mars transfer window opens in November 2026, which could see up to eight uncrewed Starhip missions to the Red Planet.