A research team utilizes laser flashes to replicate the interior of ice planets, which inspires a new method of creating tiny diamonds. What transpires inside planets like Uranus and Neptune? An innovative experiment was carried out to find out by a global team led by the Helmholtz-Zentrum Dresden-
. They used intense laser flashes to study what occurred when they shot a laser at a thin sheet of simple PET plastic.
“Up to now, we used hydrocarbon films for these kinds of experiments,” explains Dominik Kraus, a physicist at HZDR and professor at the University of Rostock. “And we discovered that this extreme pressure produced tiny diamonds, known as nanodiamonds.” “PET has a good balance between carbon, hydrogen, and oxygen to simulate the activity in ice planets,” Kraus explains.
The team also encountered hints of another kind: In combination with the diamonds, water should be produced – but in an unusual variant. “So-called superionic water may have formed,” Kraus opines. “The oxygen atoms form a crystal lattice in which the hydrogen nuclei move around freely.” Because the nuclei are electrically charged, superionic water can conduct electric current and thus help to create the ice giants’ magnetic field.
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