Scientists observe ‘diamond rain’ similar to that found on icy giant planets

August 24, 2017 by  
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You may have heard that icy planets like Neptune and Uranus experience diamond rain. But now, scientists have been able to mimic conditions of those planets and observe diamond rain at the SLAC National Accelerator Laboratory in California. Since it’s difficult for us at this point to directly observe the interiors of these planets, such research could help scientists better understand and classify worlds. For a long time, scientists have hypothesized that diamond rain arises over 5,000 miles below the surface of planets like Neptune and Uranus. In this recent experiment, a group of researchers simulated the conditions of these planets “by creating shock waves in plastic with an intense optical laser ” in the laboratory , according to a recent press release. They were able to observe that almost every carbon atom of the plastic was incorporated into diamond structures. The diamonds were tiny – only around a few nanometers wide – but on Uranus and Neptune, the researchers think the falling diamonds could weigh millions of carats. Related: Mysterious object near Neptune just made space a lot weirder Study lead author Dominik Kraus of research center Helmholtz Zentrum Dresden-Rossendorf said in a statement, “We can’t go inside the planets and look at them, so these laboratory experiments complement satellite and telescope observations.” The scientists think diamond rain could produce an energy source, generating heat as it falls. Beyond observing a neat phenomenon, the experiment could help scientists learn about how elements mix together under pressure in the interiors of planets, providing them with more information on a planet’s defining features. These researchers plan to apply their methods to study the processes of other planets as well. Nature Astronomy published the study online this week. 23 scientists of institutions in Germany, Japan, the United States, and the United Kingdom contributed to the research. Via SLAC National Accelerator Laboratory Images via Greg Stewart/SLAC National Accelerator Laboratory and SLAC National Accelerator Laboratory

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Scientists observe ‘diamond rain’ similar to that found on icy giant planets

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