Earth-like calcium-rich deposits were found on Mars by NASA’s Curiosity Rover.
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The Indian Space Research Organization's Mars Orbiter Mission probe reached Mars' orbit after 298 days.
Saturn, Jupiter, and Mars came into alignment. Medieval scholars believed this phenomenon brought forth the Black Death.
NASA launched the Mars Science Laboratory probe, which carried the Curiosity Rover to Mars.
A team of NASA scientists declared that the Martian ALH 84001 meteorite might contain traces of alien life.
NASA celebrated April Fool's Day by telling the world that they found water on Mars.
