In Pics: Clear Signs of Liquid Water Found on Mars

Scientists have found the first evidence that briny water may flow on the surface of Mars during the planet's summer months, a paper published on Monday said.

Although the source and the chemistry of the water is unknown, the discovery could affect thinking about whether the planet that is most like Earth in the solar system could support present day microbial life.

Scientists developed a new technique to analyze chemical maps of the Martian surface obtained by NASA's Mars Reconnaissance Orbiter spacecraft.
They found telltale fingerprints of salts that form only in the presence of water in narrow channels cut into cliff walls throughout the planet's equatorial region.
According to NASA, dark, narrow streaks formed by seasonal water flow on modern-day Mars.