NASA Satellites Spot Nanojets On Sun (VIDEO) NASA/Goddard Space Flight Center This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption In pursuit of understanding why the Sun's atmosphere is so much hotter than the surface, and to help differentiate between a host of theories about what causes this heating, researchers turn to NASA's Interface Region Imaging Spectrograph (IRIS) mission. IRIS was finely tuned with a high-resolution imager to zoom in on specific hard-to-see events on the Sun. A paper published in Nature on Sept. 21, 2020, reports on the first ever clear images of nanojets -- bright, thin lights that travel perpendicular to magnetic structures in the solar atmosphere called the corona -- in a process that reveals the existence of one of the potential coronal heating candidates: nanoflares. Watch on YouTube: https://www.youtube.com/watch?v=oRKMYIAQSYk Download in HD: https://svsdev.gsfc.nasa.gov/13691 Credit NASA's Goddard Space Flight Center/Scientific Visualization Studio Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.