The invisible forces erupting from our Sun create a chaotic environment extending far beyond what most people imagine. Space ...

The first pair of Galileo navigation satellites to launch on an Ariane 6 lifted off from Europe's Spaceport in Kourou, French Guiana on Wednesday (Dec. 17) at 12:01 a.m. EST (0501 GMT; 2:01 a.m. local ...

The H3 failed during its debut launch in March 2023 but bounced back with five consecutive successes — until Sunday night.

The H3 Launch Vehicle No. 5, carrying the Quasi-Zenith Satellite "Michibiki No. 6," lifts off at a launch pad in Tanegashima Space Center in Tanegashima, southern Japan, Sunday Feb. 2, 2025. (Kyodo ...

Low-Earth orbit (LEO) systems have emerged as a promising complement to GNSS, offering higher received power, better satellite geometry and broader spectrum ...

Coming off an eventful week, SpaceX isn't slowing down. Now on Tuesday evening, the space company plans to launch the next two Galileo satellites into orbit for the European Space Agency (ESA). The ...

"Lowering the satellites results in condensing Starlink orbits, and will increase space safety in several ways," Nicholls said, including by "reducing the aggregate likelihood of collision." A ...

Accurate estimation of the ionosphere is essential for reliable Global Navigation Satellite System (GNSS) positioning, timing, and space weather applications. A key challenge lies in converting slant ...

Accurate smartphone positioning in dense urban environments remains challenging due to signal blockage, multipath effects, and unreliable satellite visibility. This study presents a new positioning ...

Losing GPS would mean losing a lot more than Google Maps. The technology is integrated into everything from lights that turn ...

Global Positioning System jamming is on the rise, highlighting risks to the U.S. economy from financial systems to civilian ...

With long-range navigational aids (LORAN), ships at sea can plot their locations to within one nautical mile. Under clear skies on a calm ocean, a good navigator can take an equally accurate fix with ...