The new research provides a more complete picture of how diamond rain forms on other planets.
, scientists looked at a plastic formed of hydrogen and carbon, two elements that are important to understanding the entire chemical makeup of Neptune and Uranus.In the most recent experiment, the researchers used PET plastic, which is commonly used in food packaging, plastic bottles, and containers, to more accurately reproduce the composition of these planets.
"But inside planets, it's much more complicated; there are a lot more chemicals in the mix. And so, what we wanted to figure out here was what sort of effect these additional chemicals have."To generate shock waves in the PET, the researchers used a high-powered optical laser at the Matter in Extreme Conditions instrument at SLAC's Linac Coherent Light Source . Then, using LCLS X-ray pulses, they investigated what happened in the plastic.
Diamonds on Neptune and Uranus, the researchers predict, will grow much larger than the nanodiamonds produced in these experiments, possibly reaching millions of carats in weight.
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