IRIS Movie of the Day
At least once a week a movie of the Sun taken by NASA's Interface Region Imaging Spectrograph (IRIS) is posted by one of the scientists operating the instrument.
Dancing coronal rain
Credit: IRIS, LMSAL/NASA, Joten Okamoto
This moderate active region 12671 has beautiful "coronal rain". Coronal rain is continuously generated by plasma that is rapidly cooling from temperatures of millions of degrees to tens of thousands of degrees.. In the latter half of this movie, a C6.3 flare takes place. We can see some part of the coronal rain region shaken by the flare.