More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...
An international team of engineers and space scientists has used a variety of assumptions, techniques, and math principles to ...
High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.
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