NASA plans to start its mission of hunting for Martians with the Mars 2020 rover, a next generation robot that will have a sophisticated mobile geology laboratory created especially to search for signs of tiny dead Martians, albeit in microbial and fossilized forms. The goal of the rover will be to collect rock samples that might include ancient fossils.
Nearly four billion years ago, when our planet was still a fledgling, Mars was reportedly already proceeding towards its death bed. The planet's thick atmosphere was gradually escaping into space and subsequently leading to a plummet in temperatures that caused the rivers and lakes on the Red Planet to freeze that ultimately changed the wet surface into a dry wasteland. According to reports, scientists are of the opinion that life could have once existed on Mars, due to the presence of the more favorable conditions that could have supported it. This belief is one of the reported reasons for sending a mission to Mars, to search for dead aliens or fossilized Martians.
However, a question arises, where exactly will the rover start its search for dead Martians, considering the planet is not exactly a small place. According to NASA, the sensitive scientific instruments on Mars 2020 will look for biosignatures, which are basically the molecules and minerals secreted by ancient life. The most promising area, as per the American Space Agency, for detecting biosignatures are extinct hydrothermal vents and dried up lake beds. However, the search is still not an easy feat because of the limited range of the rover.
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