After seven months of travel, the Mars Reconnaissance Orbiter arrived safely to Mars.
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The world's first satellite navigation system, Transit 1-B, was successfully launched from the US.
The Soviet spacecraft Venera 9 went into Venus' orbit – making it the first to do so.
The STS-69 became the 100th successful crewed NASA spaceflight.
Luna 10 was launched by the USSR and became the first satellite to orbit the moon.
The unmanned space mission Luna 21 was launched.
