NASA Sun web page
CSIRO: Activities involving the Sun including understanding the Sun, tracing an analemna and more
Solar and Heliospheric Observatory spacecraft
Solar Dynamics Observatory spacecraft images
NASA sunspot numbers
Wikipedia: the Sun
WARNING. Never look directly at the bright surface of the Sun without suitable eye protection as permanent eye damage may result. This applies at any time and especially during the partial phases of a solar eclipse. Refer to “How to observe the Sun safely”.