Momentum is building to shift to a new constellation architecture that uses two types of GPS satellites — full-capability GPS III satellites and new lean spacecraft called NavSats.

When the European Space Agency launched its Galileo In-Orbit Validation Element-A (GIOVE-A) satellite in 2005, its main mission was to transmit Galileo test signals that secured the system’s frequencies, evaluate hardware under space environmental co...

In a milestone for Europe’s GNSS program, the European Space Agency reports the first successful 3D position determination using only Galileo satellites.

Proceedings 12 February 2013

Europe’s first Galileo satellite appears to be functioning as expected, transmitting test signals received by the European Space Agency’s ground station in Redu, Belgium, across the whole of its assigned radio spectrum, ESA reports.

Another spacecraft to reinforce Russia's fleet of Glonass navigation satellites lifted off Monday November 29th from the Plesetsk Cosmodrome on a Soyuz booster.