Sunspot larger than Earth captured by NASA
NASA recently captured a sunspot, a temporary area of intense magnetic field on Sun, which is larger in size than Earth. These spots are cooler (2,700-4,200Â°C), compared to surrounding surface (5,500ÂºC) making them visible as dark spots. Sunspots are common but less frequent as we head toward solar minimum, a low solar activity period during Sun's 11-year cycle, NASA said.