Solar Magnetism, Solar Activity, and Variability in Sunlight

Modern spacecraft provide views of the Sun with unprecedented detail, with the ability to study many solar properties simultaneously. Brightness variations are correlated with meridional fluctuations and with the presence of dark and bright magnetic features, such as sunspots and faculae, and can thus be related to the solar cycle. What has been learned about the origins of the Sun's light variability in various parts of the spectrum will be discussed.