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Assuming you meant life, that is because there most likely once was. Though they didn't know that for sure then, they thought it a likely possibility because of the conditions of Mars

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13y ago

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When was Mars found?

Mars was found in 1534 BC by Egyptian Astronomers.


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Astronomers have long been interested in the possibility of life on Mars because it is one of the most Earth-like planets in our solar system, with conditions that may have been suitable for life in the past. Discovering whether life ever existed on Mars could provide insights into the origins of life on Earth and the potential for life elsewhere in the universe. Additionally, understanding Mars' environmental history can help inform future exploration and the search for habitable conditions beyond our planet.


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