Study Doubts Water Flows Caused Streaks on Martian Slopes

Dark finger-like slope streaks extending across the dusty Marti (0)
WASHINGTON (Reuters) — Images taken of Mars from orbit dating back as far as the 1970s have captured curious dark streaks running down the sides of cliffs and crater walls that some scientists have construed as possible evidence of flows of liquid water, suggesting that the planet harbors environmen...

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