For years, the portable receivers that use Global Positioning System satellite signals for navigation have been niche products. They have been favored by hikers and other outdoors enthusiasts, by ...

Rockets are supposed to begin lifting off in 2006 to carry 30 European satellites into orbit. The satellites will emit signals that will allow people with receivers -- drivers, sailors, rescue workers ...

No, datum in this case it is not the singular form of data; it is the geodetic term for the measurement of the curvature surface of the earth with a specific center point. It is the basis for making ...

This paper provides an example of the implicit function theorem to the accuracy of global positioning system (GPS) navigation. The implicit function theorem allows one to approximate the timing ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. New cutting-edge science into how lightning affects Earth’s ...

Thanks to GPS, your car, your phone, even your watch knows exactly where you are on the planet, by listening to a satellite signal from 12,000 miles over your head. GPS is always on, you don't pay ...

Quantum properties may improve precision of object locators while adding security. Laser-based position location systems are entering a new era that is based on quantum mechanics. The research could ...

Upgrades to satellites in orbit and systems down below will bring centimeter-level accuracy to the masses. GPS has already transformed many industries and enabled whole new ones, like ride-sharing. A ...

You report ships suffering a Global Positioning System spoofing attack (19 August, p 6). This triggered a memory of sailing into Salcombe in Devon, UK, about two years ago. As I know the channel well, ...

Ford Fusion equipped with Swift Navigation Skylark Precise Positioning Service at the American Center for Mobility, Ypsilanti, Michigan. On a closed course, as soon as the driver gets behind the wheel ...

Every 19 years, the Global Positioning System resets a measure of time built into its program. The latest rollover is Saturday and NPR's Scott Simon asks cybersecurity expert Frank Cilluffo about it.