A $5.5 billion upgrade to the Global Positioning System moved a step closer to launch this week when a prototype arrived at a Lockheed Martin complex in Colorado to begin months of tests.
Efforts to resume contact with a Russian space mission to Mars stuck in Earth orbit after launch have failed and the probe must be considered lost, Interfax news agency reported Saturday.
A Russian rocket launched the first two satellites of the European Union's Galileo navigation system Friday after years of waiting for the start of the program billed as the main rival to the ubiquitous American GPS network.
The launch of the first two satellites for the European Union's Galileo navigation system was postponed until Friday - adding at least one more day to years of waiting for a program promoted as the main rival to GPS to get ...
(PhysOrg.com) -- NASA's Solar Dynamics Observatory, or SDO, has provided scientists new information about solar flares indicating an increase in strength and longevity that is more than previously thought.
A caesium fountain clock that keeps the United Kingdom's atomic time is now the most accurate long-term timekeeper in the world, according to a new evaluation of the clock that will be published in the October 2011 issue ...
Europe stood by its much-delayed and over-budget Galileo satellite navigation system on Tuesday despite a rising price tag and a contractor's description of the project as "stupid."
Three Russian navigation satellites crashed into the Pacific off the US state of Hawaii Sunday after the rocket carrying them failed to reach orbit, officials from the Russian space agency said.
Scientists in Germany unveiling the latest self-driven car Wednesday said the days of humans behind the wheel are numbered and that their technology can slash accidents and help the environment.
China launched an orbiter into space early Sunday, the latest stage in the development of its own satellite navigation system, state media said.