You will need to rotate the book clockwise to view the next image; the spine of the book should be facing up.
This is the Sun at two different times, on July 3, 1996 (on the left) and Dec. 4, 2001 (on the right). A solid line separates the two images.
Scan each image for brighter, raised areas of solar activity. Lower curved lines help outline areas of magnetic activity. Notice how active the Sun was during a solar maximum in 2001.
Credit: SOHO/EIT, NASA/ESA