residents in the area were exposed to a partial solar eclipse this morning . But several observers spotted some strange black spots on the sun . These were sunspots , accompanied by flashes of magnetic fields . They are sometimes associated with eruptions such as solar flares . And they can be more than ten times as big as earthquakes .
People in the UK were treated to a partial solar eclipse this morning . But several observers spotted some strange black dots on the sun . These were sunspots , caused by concentrations of magnetic fields . They are sometimes associated with eruptions such as solar flares . And they can be more than ten times as big as Earth .