What is . . the sun ?
The Transit of Venus The Sun Venus
Solar Magnetic Loops
This beautiful TRACE image shows clusters of hot coronal loops which span 30 or more times the diameter of planet Earth. These are believed to be created by the Sun's magnetic field channelling the electrified gases in these exotic arch-like shapes.
Courtesy of the Transition Region and Coronal Explorer (TRACE) Team. TRACE is a mission of the Stanford-Lockheed Institute for Space Research and part of the NASA Small Explorer program.