Then, in 1973, a group of Pentagon officials decided to create a "defense navigation satellite system," laying the groundwork for a system called Navstar-GPS — what we now know simply as GPS.

NTS-2 was the first demonstration satellite in the NAVSTAR GPS constellation managed by the NAVSTAR GPS Joint Program Office at the Space and Missile Systems Center, Los Angeles Air Force Base ...

A Navstar GPS satellite undergoing pre-launch testing. Courtesy United States Air Force. Satellite-based navigation proved its mettle in helping the U.S. Army’s VII Corps and XVIII Airborne ...

GPS is a decades-old technology by now, beginning with the first Navigation System with Timing and Ranging (NAVSTAR) satellite in orbit in 1978. By 1993, a net of 24 satellites blanketed the world ...

Navstar I was the first GPS satellite launched, placed in orbit in 1978 by research teams from the U.S. Air Force. Around this time, the project also began to take on the moniker of "GPS." ...

The satellite, and many to follow, are meant to test the NAVSTAR concept. 1978-1985 The military launches 11 more test satellites into space to test the NAVSTAR system, which by then was called ...

It has brought military grade satellite positioning to the comfort of your car. But how does it work? James May steers us through the science behind sat-nav.

Cutting a blazing path through the evening sky, an Air Force Delta 2 rocket carried a $65 million navigation satellite into space Saturday, Pentagon officials said.The two-stage Delta rumbled off ...

NAVSTAR satellite, ready to join up with at least two others to drain your phone. Image via Wikimedia Commons.. File this under “blog posts that mostly just point at a thing and ask you to look ...

Launched June 23, 1977, the NRL built Navigational Technology Satellite-2 (NTS-2) ... First GPS NAVSTAR Satellite Goes on Display. April 15, 2013 06:57 AM Eastern Daylight Time.