WASHINGTON — The U.S. Space Force has ended an exploratory effort to add smaller, lower-cost navigation satellites to bolster the Global Positioning System, shelving a program that had been identified ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Samuel Lellouch is an Assistant Professor in Digital ...

DENVER—The Global Positioning System is one of the few space programs that touches nearly every human life, and the stewards of the satellite navigation network are eager to populate the fleet with ...

WASHINGTON — Sierra Space announced May 8 it has completed a ground-based demonstration of a navigation satellite prototype for the U.S. Space Force’s Resilient Global Positioning System (R-GPS) ...

Sierra Space has successfully demonstrated its Resilient GPS (R-GPS) technology for the U.S. Space Force (USSF). This milestone, achieved in collaboration with General Dynamics Mission Systems, ...

The rise of GPS vulnerability is putting more resilient, atom-based navigational tools on the map. In late September, a Spanish military plane carrying the country’s defense minister to a base in ...

The war with Iran is laying bare the dangers posed to commercial ships and planes by the rise of GPS interference in and around conflict zones.

When the X-37B launches on its eighth mission no earlier than Aug. 21, it will carry an experimental quantum inertial sensor. When you purchase through links on our site, we may earn an affiliate ...