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What happened to Mars's water? New study suggests most was trapped in underground rocks Posted TueTuesday 16 updated WedWednesday 17 MarMarch 2021 at 2:35am The early Martian environment (right), believed to contain liquid water and a thicker atmosphere, is a world away from the cold, dry environment of Mars today (left). ( Share Print text only Cancel Some 4 billion years ago, Earth and Mars were young, warm and wet. If they weren't Solar System twins, they were certainly siblings. Key points: Much of Mars's water has disappeared since the planet formed Planetary scientists suspect most was...

Mars used to be covered in water, but it dried out billions of years ago. A lot of that water may have been irreversibly sucked up and turned into minerals in the ground

March 16, 2021 at 11:00 am An ocean’s worth of water may be lurking in minerals below Mars’ surface, which could help explain why the Red Planet dried up. Once home to lakes and rivers, Mars is now a frigid desert ( SN: 11/12/20). But measurements of atmospheric water loss made by spacecraft like NASA’s MAVEN orbiter are not enough to account for all of Mars’ missing water — which was once so abundant it could have covered the whole planet in a sea up to 1,500 meters deep. That’s more than half the volume of the Atlantic Ocean. Science.  The finding “helps bring focus to a real...

Several oceans' worth of ancient water may reside in minerals buried below Mars' surface, report researchers. The new study, based on observational data and modeling, shows that much of the red planet's initial water - up to 99% - was lost to irreversible crustal hydration, not escape to space.

New data challenges the long-held theory that all of Mars's water escaped into space Billions of years ago, the Red Planet was far more blue; according...