Tagged: navigation

Endurance captain Frank Worsley, Shackleton’s gifted navigator, knew how to stay the course - News

Guest Author Mar 14, 2022

Daniella McCahey, Texas Tech University When the wreck of Ernest Shackleton’s ship Endurance was found nearly 10,000 feet below the surface of Antarctica’s Weddell Sea in March 2022, it was located just 4 miles from its last known position, as recorded by the Endurance’s captain and navigator, Frank Worsley, in November 1915. That’s an astonishing degree of accuracy for … Read More

Satellite Orbits: Global Navigation Systems - Out of Space

Duncan Steel Feb 05, 2019

[avatar user=”duncansteel” size=”thumbnail” align=”right” /] Apart from the US-provided Global Positioning System (GPS) used by most commercial navigation systems – such as in your car, or mobile phone – there are several distinct networks operated by other space agencies deploying their own satellite fleets. Here I describe the orbits employed by the Russian, European Union and Chinese GNSS constellations. (Part … Read More

Satellite Orbits: Global Positioning System - Out of Space

Duncan Steel Jan 24, 2019

[avatar user=”duncansteel” size=”thumbnail” align=”right” /] Most of us use GPS everyday in some way, either driving in our cars or finding our way on a map displayed on our smart phones as we walk around town. Few know what sorts of orbits are occupied by the satellites making all this possible, though. (Part 2 in a series of posts concerning … Read More

How far they’ll go: Moana shows the power of Polynesian celestial navigation - Guest Work

Guest Author Feb 16, 2017

By Duane W. Hamacher, Monash University and Carla Bento Guedes, UNSW One of the greatest feats of human migration in history was the colonisation of the vast Pacific Ocean by Polynesian peoples. They achieved it thanks to their sophisticated knowledge of positional astronomy and celestial navigation. The Disney film Moana has drawn attention to … Read More