The Sun (image) University of Copenhagen - Niels Bohr Institute Share Print E-Mail Caption On our star, the Sun, the sunspots are seen in a belt around the equator. Sunspots are cool areas caused by the strong magnetic fields where the flow of heat is slowed. Credit Credit: NASA Usage Restrictions Credit: NASA Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.