The mapping of Mars’ surface began.
Mariner 9 started mapping over 85% of the surface area of Mars on this day.
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NASA's Lunar Prospector spacecraft was deliberately crashed into the Moon’s south pole.
Syncom 2, the world's first geosynchronous communications satellite is launched.
The Venera 3 space probe became the first human-made object to land on another planet.
After seven months of travel, the Mars Reconnaissance Orbiter arrived safely to Mars.
NASA launched the Pioneer 11 space probe to study the asteroid belt & the environment around Jupiter and Saturn.
