While looking at a hi-res Mars Express image of the Galle Crater I found two perfectly straight lines in it, which I believe is too unusual to be
natural occuring, both of them traverse across mountains and craters without changing course, almost like some of the straight NASCA lines on Earth.
Furher more the two lines seem to be tilted at the same angle. The first line is about 60 km (37 miles) long, the second is about 70 km (43 miles)
long, see the images below:
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