Researchers mimic high-pressure form of ice found in giant icy moons

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This May 2001 photo of Jupiters moon Callisto taken by NASAs Galileo spacecraft is the only complete global color image of Callisto obtained by Galileo which has been orbiting Jupiter since December 1995. Scientists believe the brighter areas are mai ...
This May 2001 photo of Jupiter's moon Callisto, taken by NASA's Galileo spacecraft, is the only complete global color image of Callisto obtained by Galileo, which has been orbiting Jupiter since December 1995. Scientists believe the brighter areas are mainly ice and the darker areas are highly eroded, ice-poor material. (Jet Propulsion Laboratory/NASA)

That everyday ice you use to chill your glass of lemonade has helped researchers better understand the internal structure of icy moons in the far reaches of the solar system. A research team has demonstrated a new kind of "creep" or flow in a high-pressure form of ice by creating in a laboratory the conditions of pressure, temperature, stress, and grain size that mimic those in the deep interiors of large icy moons.


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