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Hieroglyphic-like Features Point to Past Subsurface Water on Mars - Universe Today
Although these strange features on Mars look a bit like hieroglyphics or geoglyphs such as the mysterious Nazca lines on Earth, they are completely natural features, ones that are found on Earth too. This is one of the latest images from the HiRISE camera on the Mars Reconnaissance Orbiter. Called ‘rootless cones,’ they form on … Continue reading "Hieroglyphic-like Features Point to Past Subsurface Water on Mars"