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Rocks show Mars once felt like Iceland: Crater study offers window on temperatures 3.5 billion years ago – Science Daily
A comparison of chemical and climate weathering of sedimentary rock in Mars’ Gale Crater indicate the region’s mean temperature billions of years ago was akin to…

Once upon a time, seasons in Gale Crater probably felt something like those in Iceland. But nobody was there to bundle up more than 3 billion years ago.The ancient Martian crater is the focus of a study by Rice University scientists comparing data from the Curiosity rover to places on Earth where similar geologic formations have experienced weathering in different climates.
Iceland’s basaltic terrain and cool weather, with temperatures typically less than 38 degrees Fahrenheit, turned out to be…
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