Related topics: global positioning system

Image: Micro-world within an atomic clock

What looks like an aerial shot of an alien landscape is actually a scanning electron microscope view of a test glass surface, acquired as part of a project to improve the lifetime of spaceborne atomic clocks, found at the ...

Video: Testing Galileo for space

Galileo has grown to become Europe's single largest satellite constellation, and the world's most accurate satellite navigation system, delivering meter-level positioning to more than 3.5 billion users around the globe.

Two new satellites mark further enlargement of Galileo

Europe's largest satellite constellation has grown even bigger, following the launch of two more Galileo navigation satellites by Soyuz launcher from Europe's Spaceport in French Guiana on 5 December. Galileo satellites 27–28 ...

Galileo satellites given green light for launch

Europe's next pair of Galileo satellites have been given a green light for launch. Last Friday's Launch Readiness Review confirmed that the satellites, the supporting ground installations, and the early operations facilities ...

Galileo satellites' last step before launch

Europe's Galileo satellite navigation constellation is set to grow. Later this year the first two out of 12 "Batch 3" Galileo satellites will be launched by Soyuz from French Guiana. Their last step on the way to launch is ...

Galileo now replying to SOS messages worldwide

As well as providing global navigation services, Europe's Galileo satellite constellation is contributing to saving more than 2000 lives annually by relaying SOS messages to first responders. And from now on the satellites ...

Europe's GPS rival Galileo suffers outage

Europe's Galileo satellite position system, a future rival of the American GPS network, has been out of service since Friday, its oversight agency said.

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