![]() ![]() In the nineteenth century, even reputable scientists were admitting the possibility of life on Mars, imagined as a younger twin of Earth. ![]() How could one not imagine that on the other side of space someone would also be watching us? But it was after the invention of the telescope in the seventeenth century that astronomers began to understand that this planet shared much in common with ours, such as polar ice caps, winters and summers, and a physiognomy that could easily be interpreted as a version of Earth toned red, and thus would have seas and continents. Mars is an old acquaintance of humanity, documented since ancient Egypt more than 3,500 years ago. ![]()
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