Galileo also saw spots on the sun, today called sunspots, thus challenging another cherished philosophical and religious tenet ​ — that the sun is not subject to change or decay.
गैलिलियो ने सूरज में काले धब्बे भी देखे, जिन्हें आज सूर्य - धब्बे (Sunspots) कहा जाता है ।