Startup Xona Space Systems hopes to provide an unspoofable alternative to increasingly threatened GPS.

This marks the second consecutive GPS III satellite to be switched from ULA to SpaceX, following December’s launch of GPS III ...

SpaceX launched an advanced GPS satellite for the U.S. Space Force from Cape Canaveral Space Force Station in Florida.

The Space Force wants its next fleet of GPS satellites to be smaller, cheaper and more resilient - and it's looking to a mix of commercial and defense firms to help design those spacecraft.

A total outage of GPS could cost the country at least $1 billion a day. And there's no backup ... If the U.S. lost access to satellite navigation... DANA GOWARD: It would ripple through society ...

We’ve all experienced that moment of frustration when the GPS glitches and you miss ... “derive a position from nothing.” “No triangulation, no satellites, no Wi-Fi, nothing.

The most intense space weather event of the past two decades hit GPS satellites' orbit just after a solar minimum. Mild solar storms can cause more serious problems to GPS satellites than once-in ...