NASA announced Monday that scientists have concluded the long streaks appearing on the planet’s surface contain mineral salts and flowing water is the likeliest explanation for their appearance.
The dark, narrow streaks flowing downhill on Mars at sites such as this portion of Horowitz Crater are inferred to be formed by seasonal flow of water on modern-day Mars. The streaks are roughly the length of a football field. Details: http://go.nasa.gov/1LhJHsE #JourneyToMars
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