What is the state and characteristic of the liquid water that flows transiently on the present-day Martian surface?

Answer

Highly salty, transient brine seeps out seasonally

The liquid water that flows today manifests as Recurring Slope Lineae (RSL), which are very salty, transient brine that seeps out seasonally.

What is the state and characteristic of the liquid water that flows transiently on the present-day Martian surface?

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