Mars in fiction from red-colored vegetation, and Schiaparelli observed what he took to be linear features on the face of Mars, which he thought might be water channels. Because the Italian for channels is "canali", English translations tended to render the word as "canals", implying artificial construction. Lowell's books on Mars expanded on this notion of Martian canals, and a standard model of Mars as a drying, cooling, dying world was established. It was frequently speculated that ancient Martian civilizations had constructed irrigation works that spanned the planet in an attempt at saving their dying world. This concept spawned a large number of
Crewed Mars rover the following types of rovers: In human Mars missions, rovers are sometimes grouped under what have been called "mars surface elements".: Crewed Mars rover Crewed Mars rovers are vehicles for transporting people on the planet Mars, and have been conceptualized as part of human mission to that planet. Two types of crewed Mars rovers are pressurized and unpressurizedunpressurized designs may have open seating for a crew in Mars space suits, and another style has a pressurized interior for people to work without a space suit. Pressurized rovers have been envisioned for short trips from a Mars base, or they may