On 12 March 2013, Galileo satellite GSAT0104, alongside its fellow In-Orbit Validation ... "In Galileo we need to keep our orbits clear and safe to support the continuous renewal of the fleet.

Because these satellites are not placed in nominal Galileo orbits, the orbital almanacs included in Galileo’s navigation signal will leave out their orbital positions, making Galileos 5 and 6 harder ...

A launch malfunction has blasted the first two fully operational satellites for Europe's global-positioning Galileo project into incorrect orbits, roughly 2,000 miles off their intended positions.

Galileo satellites are placed in medium orbits, at 23 222 km altitude along three orbital planes so that a minimum of four satellites will be visible to user receivers at any point on Earth once ...

A seismic shift occurred in astronomy during the Scientific Revolution, beginning with 16th-century polymath Copernicus and his proposal that the Earth revolved around the sun. By the 17th century, ...

Galileo was 990 miles away from Gaspra when it whizzed by, and it was travelling at a relative speed of about 5 miles per second. ... It orbits near the inner edge of the asteroid belt.