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James Cameron: Avatar sequels to draw on master navigators (Rebecca Keegan, Los Angeles Times)



Chronology (Clock, Calendar)
Geography (Map, Navigation)


These are organized by a classification scheme developed exclusively for Cosma. More…



navigation : the science of getting ships, aircraft, or spacecraft from place to place ; especially : the method of determining position, course, and distance traveled — Webster

Oxford, OneLook, Free Dictionary, Wiktionary, InfoPlease, Urban Dictionary


Roget’s II (, Merriam-Webster Thesaurus, Visuwords


Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks. All navigational techniques involve locating the navigator’s position compared to known locations or patterns. — Wikipedia



Celestial Navigation Practice (Celestial


WolframAlpha, DuckDuckGo


First Evidence of Viking-Like ‘Sunstone’ Found (Megan Gannon, Live Science)
Evidence of Fabled Viking Navigational Tool Found (Jennie Cohen, History)


Celestial Navigation
History of Navigation (ABC)
History of Navigation Interactive Tutorial (BBC)
History of Navigation (Wikipedia)


Quotations Page


Institute of Navigation Museum


WorldCat, Library of Congress, UPenn Online Books, Open Library



Five ways to improve your navigation skills (Mountain Bike Rider)


Navigation Courses and Events (REI)
OER Commons: Open Educational Resources


Royal Institute of Navigation


Lifehacker, World Maritime News, NPR Archives




U.S. Coast Guard Navigation Center




GPS Navigation Humor (GPS Insight)


OEDILF: The Omnificent English Dictionary In Limerick Form


Satellite navigation – the next ten years (The Science Geek)



Civil GPS Service Interface Committee - Recent Updates Civil GPS Service Interface Committee - Recent Updates

  • CGSIC Bulletin: 2019 GPS Virtual Public Interface...
    on April 10, 2019 at 7:48 pm

    All CGSIC, The GPS Directorate has announced the 2019 GPS Virtual Public Interface Control Working Group Meeting On May 7th, 2019, the GPS Directorate will hold a virtual Public Interface Control Working Group Meeting. During the meeting, the Directorate will review changes to several GPS public documents to reflect how users will calculate the correct UT1 time following a leap second transition. The 2019 virtual Public Interface Control Working Group is open to the public. This meeting is […]

  • CGSIC Bulletin: GPS III-02 Arrives in Florida
    on March 27, 2019 at 4:45 pm

      All CGSIC, GPS III Space Vehicle 02 “Magellan” arrives in Florida; Prepares for July launch On March 20, 2019, U.S. Air Force’s Space and Missile Systems Center’s Global Positioning Systems Directorate successfully delivered the second GPS III satellite to Astrotech Space Operations in Titusville, Florida, in preparation for a planned July launch from Cape Canaveral. Read the full SMC Public Affairs article on the Los Angeles Air Force Base webpage: […]

  • CGSIC Bulletin: GPS Notice Advisory to NAVSTAR...
    on March 25, 2019 at 7:28 pm

      All CGSIC, NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2019040 NANU TYPE: GENERAL *** GENERAL MESSAGE TO ALL GPS USERS *** GPS week rollover will occur 06-APR-2019, users may access the following article for further information: *** GENERAL MESSAGE TO ALL GPS USERS *** POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV    MILITARY - GPS OPERATIONS CENTER at […]

  • CGSIC Bulletin: NAVCEN Releases Special Notice to...
    on March 20, 2019 at 6:04 pm

      All CGSIC, Coast Guard Navigation Center: Special Notice to All Mariners Who Use GPS Equipment The Coast Guard Navigation Center has published a special notice to mariners that use GPS Equipment. The special notice outlines the details of the GPS Week Number Rollover that will occur on 6-7 April. Users can find the special notice on NAVCEN’s website: To best prepare for the rollover […]

  • CGSIC Bulletin: Advance Notification of GPS Event...
    on March 13, 2019 at 8:36 pm

      All CGSIC, Advance Notification of GPS Event that could Affect COSPAS-SARSAT System Components In February 2019, the COSPAS-SARSAT Council published a paper providing advance notification of the GPS Week Number Rollover event that could affect COSPAS-SARSAT system components. The paper discusses the possible impacts as a result of the GPS Week Number Rollover that will occur on April 6-7, 2019. Purpose: This paper provides the background and information on an event that will occur 6 […]