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Jan 1, 1543
Discovery of Mars as a planet
Nicholas Copernicus was the first to believe that Mars was a planet. -
Observed through a telescope
Galileo Galileo was the first to observe Mars through a telescope. -
First Flyby
The first successful Mars flyby was in 1965 by Mariner 4. -
First Landing (unsuccessful)
Mars 2 was the first space probe to land on Mars, but the landing was unsuccessfful and resulted in broken equiptment. -
First Successful Landing
Mars 3 was the first successful space probe to land on Mars. -
First sign of water
Radar data showed large quantities of water ice at the poles. -
Finding evidence of water
The Mars rover "Spirit" found water molecules in a chemical compound on Mars. -
Comet strikes Mars?
NASA predicts that a comet will come very close to striking Mars in the future but will not impact the planet.