A massive wall of falling plasma, known as a polar crown prominence, was recently captured in a stunningly-detailed new photo of the sun.
Earth's sun: Facts about the sun's age, size and history
The plasma within PCPs is not actually in freefall because it is still contained within the magnetic field that initially spat them out. However, the plasma travels downwards at speeds of up to 22,370 mph , which is much faster than the magnetic fields should allow based on experts' calculations, according to NASA. Researchers are still trying to figure out how this is possible.
An image of the sun captured March 10 by NASA's Solar Dynamics Observatory. The"plasma waterfall" is circled in the image.revealed that PCPs undergo two phases during their eruptions: A slow phase, where plasma slowly shoots upward, and a fast phase, where plasma accelerates towards its altitude peak. It is possible that this may affect how the plasma falls back to the surface, but more research is needed to tell for sure.
, or massive magnetized plasma plumes that can fully break away from the sun and slam into Earth. But PCPs are also of interest to nuclear physicists because the sun's magnetic field seems to be particularly adept at containing the plasma loops in the polar regions, which could provide insights that help researchers improve experimental
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