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In 1877 Giovanni Schiaparelli,an Italian astronomer,was the first person to draw a map of Mars.
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The Spacecraft was called the Mariner 4. It took close-up photos of Mars's terrain.
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David announced that he found a meteriote in Antarctica and he thinks the things he found inside the meteriote were fungus, which means there could be martians on mars, but he doesn't know for sure.
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One of The first Mars Rover invented was called the Sojourner Rover, Mars Path Finder.