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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: NAVCEN Planning Launch of New...
    on July 8, 2021 at 2:44 pm

    Dear GovDelivery Subscribers, I am writing to announce an exciting change. The NAVCEN web team is going to transition the NAVCEN website to a new and enhanced version in the coming months. This change is planned for the end of summer/early fall. This tremendous upgrade in aesthetic appeal and functionality is a very large step in our vision and goal to provide more useful, easier-to-access, and streamlined maritime safety data and information to our customers.  The […]

  • CGSIC Bulletin: GPS III SV05 Receives...
    on July 7, 2021 at 2:31 pm

    All CGSIC: Los Angeles Air Force Base 1 July 2021 The United States Space Force’s, Space and Missile Systems Center transferred Satellite Control Authority of the Global Positioning System III Space Vehicle 05 to the 2nd Space Operations Squadron, Schriever Air Force Base, on June 28. Less than one day after SCA, on 29 June 2021, GPS III SV05 received Operational Acceptance approval, marking the first GPS III SV to receive SCA handover and Operational Acceptance […]

  • CGSIC Bulletin: New GPS Interface Specifications...
    on July 6, 2021 at 2:54 pm

    All CGSIC: The U.S. Space Force Space and Missile Systems Center  (SMC) has issued official, signed Interface Specification (IS) and Interface Control Document (ICD) revisions:  IS-GPS-200M Navstar GPS Space Segment/Navigation User Interfaces IS-GPS-800H Navstar GPS Space Segment/User Segment L1C Interface IS-GPS-705H Navstar GPS Space Segment/User Segment L5 Interface ICD-GPS-240D Navstar GPS Control Segment to User Support Community Interface These documents […]

  • CGSIC Bulletin: GPSIII-05 SVN-78/PRN-11 upcoming...
    on June 15, 2021 at 8:39 pm

    All CGSIC: Date/Site/Launch Time: Thursday, June 17th, 2021, GPSIII-05 (SVN-78/PRN-11 will launch from Space Launch Complex-40 at Cape Canaveral Air Force Station, Florida.  A 15-minute launch window opens at 1209 pm Eastern Daylight Time (1609-1624 UTC). Rocket/Payload: SpaceX Falcon 9 reused booster. GPSIII-05 mission for the U.S. Space Force. It should be noted that the Space Force will be performing an extended navigation test with SVN-78/PRN-11 so the […]

  • CGSIC Bulletin: GPS Next Generation Operational...
    on May 5, 2021 at 3:29 pm

    All CGSIC: LOS ANGELES AIR FORCE BASE, Calif. - The United States Space Force’s Space and Missile Systems Center (SMC) awarded a $228 million contract to Raytheon Intelligence and Space for the Global Positioning System (GPS) Next Generation Operational Control System (OCX) Follow-On (OCX 3F) on April 30. The OCX 3F program is part of the GPS Enterprise Modernization effort. GPS is a satellite-based radio navigation system that provides accurate positioning, […]