After a 15-month-long journey from earth, NASA’s Magellan went into orbit around Venus and began to map the planet.
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Venera 7 launched by the Soviet Union.
The Soviet Probe Venera 4 entered Venus' atmosphere and sent back information to Earth for about 90 minutes before it lost contact.
NASA Launches Mariner 2.
Astronomers Jeremiah Horrocks and William Crabtree recorded the first known observation of a transit of Venus across the sun.
Russian spacecraft Vega 2 landed on Venus.
