Whereas water was current on Mars, they counsel, the liquid might have trickled by sure rock varieties and set off a gradual chain of reactions that progressively drew carbon dioxide out of the ambiance and transformed it into methane, a type of carbon that could possibly be saved within the clay for eons.
The researchers utilized their data of interactions between rocks and gases on Earth to how related processes might play out on Mars. They discovered that the amount of clay overlaying the Martian floor might maintain as much as 1.7 bar of CO2, which might be equal to round 80% of the planet’s early ambiance. “In some methods, Mars’s lacking ambiance could possibly be hiding in plain sight,” Murray says.
The researchers suppose it’s attainable that this sequestered carbon might at some point be recovered and transformed into propellant to gasoline future missions between Mars and Earth.