On Jan. 23-24, 2017, NASA's Solar Dynamics Observatory watched as a solar prominence rose up along the edge of the sun and twisted and churned for about two days before falling apart. The dynamic action was generated by competing magnetic forces.
On Jan. 20, 2017, NASA's Solar Dynamics Observatory captured a small area of the sun highlighted three active region. Over half a day this active region sent dark swirls of plasma and bright magnetic arches twisting and turning above it.
NASA's Solar Dynamics Observatory spied a substantial coronal hole begin to rotate into view over Dec. 1-2, 2016. Coronal holes are magnetically open areas of the sun's magnetic field structure that spew streams of high speed solar wind into space.
A minor solar eruption triggered a crackling, white flash that sent an expanding wave of plasma below it over about six hours in this observation from NASA's Solar Dynamics Observatory on Nov. 4, 2016.
NASA's Solar Dynamics Observatory compares very large coronal holes taken Oct. 27, 2016. Coronal holes are areas of open magnetic field that carry solar wind out into space, currently causing a lot of geomagnetic activity here on Earth.
When an active region rotated into a profile view, NASA's Solar Dynamics Observatory was able to capture the magnificent loops arching above an active region (Sept. 28-29, 2016). The Earth was inset to give a sense of the scale of these towering arches.
On Sept. 12-14,2016 NASA's Solar Dynamics Observatory spotted a series of active regions stretched along the right side of the sun exhibited a wide variety of loops cascading above them. Earth quickly passed in front of a portion of the sun.
NASA's Solar Dynamics Observatory (SDO) saw both the Moon (upper right) and the Earth (upper left) partially block the sun (Sept. 1, 2016 at 7:33 UT). Just before this image was taken, the Earth totally blocked the sun for a while.
The Sun produced three M-class (medium-sized) flares in less than 13 hours and the third one had an interesting flourish at the end (July 22-23, 2016). These were the largest flares the Sun had produced this year as seen by NASA's Solar Dynamics Observato