For the first time, NASA has detected a signal from the Global Navigation Satellite System (GNSS) nearly 250,000 miles from Earth. The signal was part of the Lunar GNSS Receiver Experiment (LuGRE) ...

NASA and the Italian Space Agency's Lunar GNSS Receiver Experiment succeeded in its first attempt to acquire Earth-based navigation signals from the moon on March 3, 2025. Credit: NASA / Dave Ryan ...

The Space Force pressed ahead with R-GPS using the funding it had, even after Congress declined to approve the additional $77 million. A year later, the dynamic has reversed: the Space Force says it ...

On January 17, 2025, a Ryanair flight from London was just moments from touching down in the Lithuanian capital of Vilnius when its descent was abruptly aborted. The Boeing 737 MAX 8-200 had descended ...

The country’s GPS systems might be more vulnerable than you think — and the stakes are high. A Global Positioning System failure could affect transportation, banking and emergency operations. But ...

While serving on the National Security Council staff in the Biden administration, I was tasked with strengthening the resilience of U.S. critical infrastructure, namely its reliance on GPS for ...

In cases where GPS satellites may be degraded or unreliable, researchers from Sandia National Laboratories and Ohio State University are considering cellphone towers as alternative sources of signals ...