What specific surface features, showing seasonal dark streaks, provided the critical spectral evidence for transient liquid brine flows in 2011?

Answer

Recurring Slope Lineae (RSLs)

Data from the MRO's CRISM instrument provided spectral evidence of hydrated salts on Recurring Slope Lineae (RSLs), which allows for transient flows of liquid brine on the surface.

What specific surface features, showing seasonal dark streaks, provided the critical spectral evidence for transient liquid brine flows in 2011?

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