Mars streaks are probably caused by dust and sand, not water
 

https://c.slashgear.com/wp-content/u...ks-605x383.jpgMars photos show an interesting landscape feature: dark streaks that appear to show flowing movement, which some thought may be water. A new study says that is probably not the case, though, instead being more likely attributed to dry flow processes. This is based in part on assessments made with the Mars orbiter’s telescopic camera. That’s bad news in the … Continue readinghttp://feeds.feedburner.com/~r/slashgear/~4/V36592zciGM

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