After seven months of travel, the Mars Reconnaissance Orbiter arrived safely to Mars.
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NASA's Curiosity rover landed on Mars' Aeolis Palus plain.
NASA mission STS-72 landed at the Kennedy Space Center after eight days in space.
Viking I lands on Mars.
A team of NASA scientists declared that the Martian ALH 84001 meteorite might contain traces of alien life.
The Soviet spacecraft Venera 9 went into Venus' orbit – making it the first to do so.
