Exploratorium
Exploratorium: Solar Max 2000
Examines the solar maximum cycle that occurred in the year 2000. Describes the characteristics of sunspots, solar flares, and coronal mass ejections, using video, photographs, news reports, and similar resources.
University Corporation for Atmospheric Research
Ucar: Sort the Sun by Temperature
Sort features of the sun based on temperature or solar minimum and maximum.
University Corporation for Atmospheric Research
Ucar: Coronal Holes in the Sun's Atmosphere
Coronal holes are areas in the Sun's atmosphere that appear dark in X-ray and ultraviolet images of the Sun. View a picture and read a description of coronal holes in this article.