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Galileo arrived at Jupiter on December 7, 1995, after gravitational assist flybys of Venus and Earth, and became the first spacecraft to orbit an outer planet. [4] The Jet Propulsion Laboratory built the Galileo spacecraft and managed the Galileo program for NASA. West Germany's Messerschmitt-Bölkow-Blohm supplied the propulsion module.
The primary mission concluded on December 7, 1997, but the Galileo orbiter commenced an extended mission known as the Galileo Europa Mission (GEM), which ran until December 31, 1999. By the time GEM ended, most of the spacecraft was operating well beyond its original design specifications, having absorbed three times the radiation exposure that ...
The Galileo project would have been considered a success even if the spacecraft had stayed operational only through the end of the primary mission on 7 December 1997, two years after Jupiter arrival. The orbiter was an extremely robust machine, however, with many backup systems.
Model of a Galileo satellite. This is a list of past and present satellites of the Galileo navigation system.The fully operational constellation will nominally consist of 30 satellites in Medium Earth Orbit, with 24 active and 6 spares equally divided into 3 orbital planes in a Walker 24/3/1 configuration.
The data was compared with observations from previous missions that have flown by Jupiter and its moons, such as NASA’s Galileo spacecraft, as well as ground-based telescopes.
A view of Jupiter's moon Europa created from images taken by NASA's Galileo spacecraft in the late 1990's. Six spacecraft have visited Europa since it became one of the first moons found beyond Earth.
Image credits: NASA NASA has been discussing the journey to the icy moon since the Galileo spacecraft, which orbited Jupiter in 1995 and finished its mission in 1997.. The National Research ...
Starting with Galileo's first orbit, the spacecraft's camera, the Solid-State Imager (SSI), began taking one or two images per orbit of Io while the moon was in Jupiter's shadow. This allowed Galileo to monitor high-temperature volcanic activity on Io by observing thermal emission sources across its surface. [68]