Large Deposit Of Hidden Water Discovered On Mars

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An artist's illustration of the ExoMars Trace Gas Orbiter (TGO) that recently discovered water under Mars' surface (Credit: ESA)

Researchers have long suspected that Mars was once home to several rivers, lakes, and perhaps even oceans. But while they have been able to detect ice, and some salty lakes, in the planet's polar regions, finding water in other areas has proved elusive. Now, scientists have finally found evidence of a large water reservoir just a few feet below the surface of the Red Planet's Valles Marineris canyon system.

Located along the equator of Mars, the Valles Marineris is one of the Solar System's largest canyons. The massive tectonic chasm measures over 2,500 miles (4,023 kilometers) long and 5 miles (8 km) deep. NASA estimates that if the Valles Marineris were on Earth, it would stretch across the continental United States — all the way from New York to California.

The TGO found a large amount of hydrogen in the Valles Marineris canyon system (Credit: ESA)

"We found a central part of Valles Marineris to be packed full of water — far more water than we expected," said study co-author Alexey Malakhov, a scientist at the Space Research Institute of the Russian Academy of Sciences. "This is very much like Earth's permafrost regions, where water ice permanently persists under dry soil because of the constant low temperatures."

The discovery was made using data collected by the ExoMars Trace Gas Orbiter (TGO), which has been circling the Red Planet since 2018. TGO, a collaboration between the European Space Agency (ESA) and the Russian Federal Space Agency (Roscosmos), is designed to detect the presence of gases such as methane and water vapor in the Martian atmosphere. The researchers say that between May 2018 to February 2021, the orbiter's Fine Resolution Epithermal Neutron Detector (FREND) found an unusually large amount of hydrogen — a measure of water content – in the '

The water was discovered in the Candor Chasma valley of the Valles Marineris canyon system (Credit: ESA)

The scientists, who revealed their findings in a press statement on December 15, 2021, suspect the water is in the form of ice. If true, it could make up as much as 40 percent of the area's near-surface material. However, FREND could also be detecting water that is chemically bound to minerals in the soil. The team plans to analyze more data to determine the water's form. Regardless of the outcome, they believe the discovery is a game-changer for potential human missions to the Red Planet.

"Knowing more about how and where water exists on present-day Mars is essential to understand what happened to Mars' once-abundant water, and helps our search for habitable environments, possible signs of past life, and organic materials from Mars' earliest days," says Colin Wilson, ESA's TGO project scientist.

Resources: www.esa.in, Live Science.com

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177 Comments
  • progamer1022
    progamer1022over 1 year
    I have heard that water was once on mars but i did not know it was true
    • iheartpuppies
      iheartpuppiesabout 2 years
      So cool!!!!!
      • ilikebirds
        ilikebirdsover 2 years
        now we can stay hydrated on mars :)
        • letsgomets20
          letsgomets20over 2 years
          If we all have to go to Mars. I'm staying on Earth because I don't want to spent my last moments alive ona red , barren , wasteland.
          • novymizudyfo
            novymizudyfoover 2 years
            wow!
            • nataliegeminigo
              nataliegeminigoover 2 years
              I have a CRAZY Idea of what had happed . That is we HAD lived on Mars LONG LONG ago but water was sacred so we jumped on a flying meteor that landed in earth. The meteor was the one that made dinos extinct
              • iheartpuppies
                iheartpuppiesabout 2 years
                That probably did not happen, but some other animal could have lived on mars.
                • novymizudyfo
                  novymizudyfoover 2 years
                  Too crazy for my taste!
                  • ivan0708
                    ivan0708over 2 years
                    There was life on Mars a long time ago and Earth was literally just a pit of Death planet until life on Mars was destroyed and life figured out a way to love on Earth and make it a living place, the place that it is now.
                  • nataliegeminigo
                    nataliegeminigoover 2 years
                    How would it taste like??? Is is like normal water???
                    • ameliastockton
                      ameliastocktonover 2 years
                      cool like really cool
                      • adroit_avimimus
                        adroit_avimimusover 2 years
                        That's very interesting! If there were more oxygen, we could live there!
                      • foxy2633
                        foxy2633over 2 years
                        did you know that maybe we used to live on mars so that's why there is water there but the water started drying up so we sent an escape pod to earth with adam and eve in it and that was the asteroid that killed the dinosaurs.