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  2. Cosmic Calendar - Wikipedia

    en.wikipedia.org/wiki/Cosmic_Calendar

    A graphical view of the Cosmic Calendar, featuring the months of the year, days of December, the final minute, and the final second. The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its currently understood age of 13.787 billion years to a single year in order to help intuit it for pedagogical purposes in science education or popular science.

  3. File:NASA Science Calendar 2021.pdf - Wikipedia

    en.wikipedia.org/wiki/File:NASA_Science_Calendar...

    English: 2021 NASA Science Calendar 2021 NASA Science Calendar: Science and discovery have always required us to persevere. Through unprecedented times. Through storms and turbulence. Perseverance is more than facing challenges. It demonstrates our ability to hold on to a worthy goal with resilience.

  4. Astronomical clock - Wikipedia

    en.wikipedia.org/wiki/Astronomical_clock

    The astronomical clock in the tower of the New Town Hall was installed in 1910. Kryštofovo Údolí. The Kryštofovo Údolí astronomical clock is a modern astronomical clock (inaugurated in 2008), built-in a former electrical substation. Hojsova Stráž. An astronomical clock in the Bohemian Forest was inaugurated in 2017. It has a concentric ...

  5. Computus clock - Wikipedia

    en.wikipedia.org/wiki/Computus_clock

    The movement of a computus clock provides and/or calculates astronomical and calendar information according to the tradition that Easter Sunday is the first Sunday after the first full moon (Paschal or ecclesiastical full moon) on or after the spring equinox (21 March), and Easter Sunday should not occur on the same day as the Jewish calendar date Nisan 15th, the first day of Passover week.

  6. Calendar - Wikipedia

    en.wikipedia.org/wiki/Calendar

    In a solar calendar a year approximates Earth's tropical year (that is, the time it takes for a complete cycle of seasons), traditionally used to facilitate the planning of agricultural activities. In a lunar calendar, the month approximates the cycle of the moon phase. Consecutive days may be grouped into other periods such as the week.

  7. Jet Propulsion Laboratory Development Ephemeris - Wikipedia

    en.wikipedia.org/wiki/Jet_Propulsion_Laboratory...

    DE424 [36] was created in 2011 to support the Mars Science Laboratory mission. DE430 [37] was created in 2013 and Is intended for use in analyzing modern data. It covers the dates 1550 January 1 to 2650 January 22 with the most accurate lunar ephemeris. From 2015 onwards this ephemeris is utilized in the Astronomical Almanac.

  8. Print an AOL Calendar

    help.aol.com/articles/print-an-aol-calendar

    Using AOL Calendar lets you keep track of your schedule with just a few clicks of a mouse. While accessing your calendar online gives you instant access to appointments and events, sometimes a physical copy of your calendar is needed. To print your calendar, just use the print functionality built into your browser.

  9. File:NASA Science 2018 Commemorative Calendar.pdf - Wikipedia

    en.wikipedia.org/wiki/File:NASA_Science_2018...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

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