Twelve new moons were discovered in Jupiter’s orbit, bringing the planet’s total number of moons to 79.
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A conjunction of Sun, Mercury, Venus, Mars, Jupiter, Saturn, and the Moon occurred.
NASA's Galileo spacecraft skimmed by Jupiter's moon, Lo, at just 112 miles (180 km).
NASA announced they would send a ship to Jupiter's moon, Europa, to look for extraterrestrial life.
The US spacecraft Pioneer 10 launched.
The last signal from the Pioneer 10 space probe was received.
