<\/p>\n First predicted by Swedish Nobel laureate Hannes Alfv\u00e9n<\/a> in 1942, Alfv\u00e9n waves are magnetic disturbances that travel through the plasma, the superheated, electrically charged gas that makes up the sun<\/a>. Larger versions of these waves have been seen before, typically linked to solar flares, but the smaller, ever-present twisting kind had remained elusive \u2014 until now.<\/p>\n You may like<\/p>\n “This discovery ends a protracted search for these waves that has its origins in the 1940s,” Richard Morton, a professor of engineering, physics and mathematics at Northumbria University in the U.K. who led the study, said in a statement<\/a>.<\/p>\n Scientists have long suspected that these small-scale waves could continuously carry energy from the sun’s surface into its atmosphere, powering the solar wind and heating the corona to millions of degrees, far hotter than the sun’s visible surface, which is only about 9,932 degrees Fahrenheit (5,500 degrees Celsius).<\/p>\n The results offer crucial confirmation for theoretical models about how magnetic turbulence carries and dissipates energy in the sun’s upper atmosphere, Morton added. “Having direct observations finally allows us to test these models against reality.”<\/p>\n To arrive at their conclusions, Morton’s team used data from the Inouye Telescope, which captures the highest-resolution images of the sun ever obtained<\/a>. The four-meter-wide telescope can detect faint shifts in light that reveal how plasma moves through the corona, allowing scientists to see the sun in unprecedented detail.<\/p>\n During the telescope’s commissioning phase in October 2023, the team tracked iron atoms heated to 1.6 million degrees Celsius and spotted faint red and blue shifts on opposite sides of magnetic loops, which were the telltale signature of twisting Alfv\u00e9n waves, according to the study.<\/p>\n These waves twist the sun’s magnetic field lines like a corkscrew, but the motion is too subtle to spot directly in images, scientists say. To detect them, Morton’s team used spectroscopy, a technique that measures how hot gas moves toward or away from Earth. This motion slightly changes the light’s color, red when moving away, blue when moving closer, thereby revealing the hidden twisting pattern in the sun’s atmosphere.<\/p>\n \n
![\"An](\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2025\/11\/Z8uJmjA4UdQFCqR4RaCGBG.jpg\")