2021-06-02

Scientists “reproduce” the “helium rain” that may appear on Jupiter in the laboratory

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Scientists “reproduce” the “helium rain” that may appear on Jupiter in the laboratory

But now, these conditions have been reproduced in the laboratory, using it to produce “helium rain “. This is thanks to researchers from the University of Rochester, the University of California at Berkeley, the Lawrence Livermore National Laboratory in the United States, and the French Commission for Atomic Energy and Alternative Energy.

The team first used a diamond cutting board battery to compress the mixture of hydrogen and helium to about 40,000 times the pressure of the earth’s atmosphere. Then, the researchers fired high-power lasers at these gases to generate strong shock waves, further compress them, and heat them to between 4425°C and 9925°C.

Scientists “reproduce” the “helium rain” that may appear on Jupiter in the laboratory(1)

And to be sure, when a researcher When studying the reflectivity of the signal, it shows signs of rapid changes in its electrical conductivity at certain points. This means that helium and hydrogen are separating, causing helium to condense into droplets in the hydrogen. Being slightly heavier, these droplets will sink in the atmosphere like rain–just as predicted.

“Our experiments show that in the depths of Jupiter and Saturn, helium droplets are passing through a huge ocean of liquid metallic hydrogen,” said Gilbert Collins, the lead author of the study. “The next time you look up at Jupiter in the night sky, this is quite an amazing thing. This work will help us better understand the nature and evolution of Jupiter. This is particularly important because Jupiter has long been considered To some extent it is a space garbage collector-protecting our planet in the solar system.”

Scientists “reproduce” the “helium rain” that may appear on Jupiter in the laboratory(2)

Helium is not the only unusual thing that falls as rain in the atmosphere of other planets. Astronomers have previously found evidence of alien raindrops made of rocks, diamonds, rubies, iron or titanium oxide.

This new research was published in the journal Nature.