Five Decades Of Global Navigation Satellite System Development

GPS satellite
Credit: Lockheed Martin

Now in its seventh iteration of spacecraft design, GPS remains the most used and relied upon among the several systems now providing space-based position, navigation and timing. Click in the upper right corner of the timeline below to view it in full-screen mode. 

Graham Warwick

Graham leads Aviation Week's coverage of technology, focusing on engineering and technology across the aerospace industry, with a special focus on identifying technologies of strategic importance to aviation, aerospace and defense.