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The discovery that changes everything! Mars was habitable, scientists show the evidence
2025-04-18 10:01:27 / MISTERE&KURIOZITETE
An extraordinary scientific discovery has confirmed that Mars was once a habitable planet.
This is no longer just a hypothesis, but a fact backed by tangible scientific evidence. Large carbonate deposits have been discovered on the surface of the Red Planet, evidence of the presence of CO₂ in its ancient atmosphere – at a time when Mars still had a warmer climate and was covered in oceans.
These carbonate deposits, which are minerals created by the interaction of carbon dioxide with water and rocks, indicate that an active carbon cycle existed on Mars – a process essential for supporting life.
The discovery has been published in the prestigious scientific journal Science , which has dedicated its cover to this study, led by Professor Benjamin Tutolo from the University of Calgary in Canada.
“This is a surprising and extremely important discovery,” Tutolo says. “It tells us that Mars once had conditions that supported life.”
The deposits were discovered thanks to NASA's Curiosity rover, which has been exploring Gale Crater - an ancient area believed to have once been covered by a large lake - since 2012. Although only small amounts of carbonates had previously been found on Mars, the new data show the presence of high concentrations of siderite (iron carbonate), embedded in layers rich in magnesium sulfate.
The discovery came as a surprise to scientists, as measurements from satellites orbiting Mars had not previously detected carbonates in this area. This suggests that their formation occurred through direct reactions between water and rocks, influenced by evaporation processes, allowing CO₂ from the early atmosphere to be captured in sedimentary rocks.
According to the researchers, these deposits represent a "vast archive of Mars' ancient atmosphere" and further reinforce the idea that the planet had a much more dynamic and life-friendly past than previously thought.
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