Karina Sharma
A very long solar filament that had been snaking around the Sun erupted with a flourish.
The Sun blew out a coronal mass ejection along with part of a solar filament over a three-hour period.
The bright light of a solar flare on the left side of the Sun and an eruption of solar material shooting through the Sun’s atmosphere, called a prominence eruption.
The Sun includes high-energy X-ray data from NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) shown in blue; lower energy X-ray data from the X-ray Telescope.
Mercury passed directly between the Sun and Earth, making a transit of the Sun.
Fast solar wind leaving the sun in this image from NASA Solar Dynamic Observatory.