| http://www.w3.org/ns/prov#value | - By analyzing carbonate minerals in a four-billion-year-old meteorite that originated near the surface of Mars, the scientists determined that the minerals formed at about 18 degrees Celsius (64 degrees Fahrenheit). ???The thing that???s really cool is that 18 degrees is not particularly cold nor particularly hot,??? says Woody Fischer, assistant professor of geobiology and coauthor of the paper, p
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