The canals on Mars, according to Percival Lowell
![The canals on Mars, according to Percival Lowell](https://planetary.s3.amazonaws.com/web/assets/pictures/_1200x600_crop_center-center_82_line/20121010_lowell_canals.jpg 1200w, https://planetary.s3.amazonaws.com/web/assets/pictures/_768x384_crop_center-center_60_line/20121010_lowell_canals.jpg 768w, https://planetary.s3.amazonaws.com/web/assets/pictures/_576x288_crop_center-center_60_line/20121010_lowell_canals.jpg 576w)
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