Space probe comet 67P/Churyumov-Gerasimenko in November 2014. First probe to Jupiter. Radio communications were lost with Pioneer 10 on January 23, 2003, because of the loss of electric power for its radio transmitter, with the probe at a distance of 12 billion kilometers (80 AU) from Earth. First probe to fly by Saturn. (Communications were later lost due to power constraints and vast distance.) "Voyager 1" is a 733-kilogram probe launched September 5, 1977. It visited Jupiter and Saturn and was the first probe to provide detailed images of the moons of these planets. "Voyager 1" is the farthest human-made object from
Exploration of Jupiter moons and the ring system, discovering the volcanic activity of Io and the presence of water ice on the surface of Europa. "Ulysses" further studied Jupiter's magnetosphere in 1992 and then again in 2000. The "Cassini" probe approached the planet in 2000 and took very detailed images of its atmosphere. The "New Horizons" spacecraft passed by Jupiter in 2007 and made improved measurements of its and its satellites' parameters. The "Galileo" spacecraft was the first to have entered orbit around Jupiter, arriving in 1995 and studying the planet until 2003. During this period "Galileo" gathered a large amount of information