US military developing geolocation system for underground
Researchers show how far South American cities moved in quake
The massive magnitude 8.8 earthquake that struck the west coast of Chile last month moved the entire city of Concepcion at least 10 feet to the west, and shifted other parts of South America as far apart as ...
GPS getting an upgrade - for $8 billion
US army seeks new technology to replace GPS
The US army is working to limit its dependence on GPS by developing the next generation of navigation technology, including a tiny autonomous chip, the director of the Pentagon's research agency said Wednesday.
Biggest solar storm in years races toward Earth (Update 2)
The largest solar storm in five years was due to arrive on Earth early Thursday, promising to shake the globe's magnetic field while expanding the Northern Lights.
Moon's shadow, like a ship, creates waves
During a solar eclipse, the Moon's passage overhead blocks out the majority of the Sun's light and casts a wide swath of the Earth into darkness. The land under the Moon's shadow receives less incoming energy ...
Glitch shows how much US military relies on GPS
A problem that rendered as many as 10,000 U.S. military GPS receivers useless for days is a warning to safeguard a system that enemies would love to disrupt, a defense expert says.
'Optical clock' yields split-second success
Physicists said Tuesday that a so-called optical lattice clock, touted by some as the time-measuring device of the future, had passed a key accuracy test.
China launches rival GPS satellite system (Update)
China has launched commercial and public services across the Asia-Pacific region on its domestic satellite navigation network built to rival the US global positioning system.
Soyuz rocket launches two Galileo satellites
A Soyuz rocket launched two Galileo satellites into orbit on Friday, marking a crucial step for Europe's planned navigation system, operator Arianespace announced.
China's satellite navigation system live
China's home-grown satellite navigation system launched a limited positioning service Tuesday, the official Xinhua news agency said, as the country seeks to break its dependence on foreign technology.
Apocalypse... but not as we know it
The End Of The World As We Know It—TEOTWAWKI—is littered with predictions that didn't quite pan out.
Forecasters keep eye on looming 'Solar Max'
The coming year will be an important one for space weather as the Sun pulls out of a trough of low activity and heads into a long-awaited and possibly destructive period of turbulence.
GPS satellites not 'falling out of the sky': Air Force
You can put those maps away. The US Air Force has shot down fears that the space-based Global Positioning System (GPS) is going to crash.