Scientists Uncover Origins of Dynamic Jets on Sun's Surface

Scientists Uncover Origins of Dynamic Jets on Sun's Surface

At any given moment, as many as 10 million wild jets of solar material burst from the sun's surface. They erupt as fast as 60 miles per second, and can reach lengths of 6,000 miles before collapsing. These are spicules, and despite their grass-like abundance, scientists didn't understand how they form. Now, for the first time, a computer simulation -- so detailed it took a full year to run -- shows how spicules form, helping scientists understand how spicules can break free of the sun's surface and surge upward so quickly. This work relied upon high-cadence observations from NASA's Interface Region Imaging Spectrograph, or IRIS, and the Swedish 1-meter Solar Telescope in La Palma. Together, the spacecraft and telescope peer into the lower layers of the sun's atmosphere, known as the interface region, where spicules form. The results of this NASA-funded study were published in Science on June 22, 2017 -- a special time of the year for the IRIS mission, which celebrates its fourth anniversary in space on June 26. Read more: https://www.nasa.gov/feature/goddard/2017/scientists-uncover-origins-of-the-sun-s-swirling-spicules Music credit: 'Solar Dust' by Laurent Levesque [SACEM], 'Games Show Sphere 05' by Anselm Kreuzer [GEMA] from Killer Tracks Research: On the generation of solar spicules and Alfvénic waves. Journal: Science, June 22, 2017. Link to paper: http://science.sciencemag.org/content/356/6344/1269.full This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/12604 If you liked this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/NASAExplorer Or subscribe to NASA’s Goddard Shorts HD Podcast: https://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Follow NASA’s Goddard Space Flight Center · Facebook: https://www.facebook.com/NASA.GSFC · Twitter https://twitter.com/NASAGoddard · Flickr https://www.flickr.com/photos/gsfc/ · Instagram https://www.instagram.com/nasagoddard/ · Google+ https://plus.google.com/+NASAGoddard/posts