It all began on a clear night in 1610 AD. Galileo Galilei caught glimpses of four bodies that would later bear his name—the Galilean Moons. Because Jupiter's largest satellites were so bright, Galileo called them, "stars."
Europe's latest Galileo navigation satellite has arrived at the Agency's technical centre in the Netherlands for testing, as the previous two satellites are prepared for shipping to French Guiana for launch this summer.
To mark the first anniversary of Galileo's historic first satnav positioning measurement, ESA plans to award certificates to groups who picked up signals from the four satellites in orbit to perform their own fixes.
NASA's Galileo spacecraft arrived at Jupiter on December 7, 1995, and proceeded to study the giant planet for almost 8 years. It sent back a tremendous amount of scientific information that revolutionized our understanding ...
(Phys.org) —Scientists, including Brown University geologists and students, have completed the first global geological map of Ganymede, Jupiter's largest moon and the largest in the solar system.
(Phys.org) —The in-orbit validation of Galileo has been achieved: Europe now has the operational nucleus of its own satellite navigation constellation in place – the world's first civil-owned and operated satnav system.
Europe will expand its space presence this year through missions with a more practical application for Earthlings—notably the Galileo constellation of navigation satellites, the European Space Agency (ESA) said Friday.
(Phys.org) —Scientists at Towson University in Towson, Maryland, have identified a practical, yet overlooked, test of string theory based on the motions of planets, moons and asteroids, reminiscent of Galileo's famed test ...
ESA's Galileo satellites have achieved their very first aerial fix of longitude, latitude and altitude, enabling the inflight tracking of a test aircraft.
On Dec. 4, 1973, NASA's Pioneer 10 spacecraft sent back images of Jupiter of ever-increasing size. The most dramatic moment was after closest approach and after the spacecraft was hidden behind Jupiter. Here, images gradually ...