Este fue
tu cielo.

Solar Cycle 25 Has Begun

The Sun's activity follows an approximately 11-year cycle. Solar Cycle 25 began in December 2019, marked by a minimum in sunspot activity. The right side of this image shows the quiet Sun at this minimum. The left side shows the active Sun at the maximum of Solar Cycle 24 in April 2014. These extreme ultraviolet images from the Solar Dynamics Observatory highlight coronal loops.