An image of a sunspot on the Sun's surface, appearing like an area of black and red spots connected by swirls of yellow material that almost form a figure-8. The Sun's surface is covered in swirling material from bright yellow to dark yellow and black.

Two Weeks in the Life of a Sunspot

On July 5, 2017, NASA’s Solar Dynamics Observatory watched an active region — an area of intense and complex magnetic fields — rotate into view on the Sun. The satellite continued to track the region as it grew and eventually rotated across the Sun and out of view on July 17.   With their complex … Continue reading Two Weeks in the Life of a Sunspot

NASA