July is a time for
fireworks, and the Sun has certainly been
celebrating, with no fewer
than 40 flares of at least GOES
M-class in just the first two weeks.
The movie linked above shows the dramatic nature of one of these
flares, on the southwest limb of the Sun, 2012/07/08-09. As the flare
progressed, it developed a ghostly structure high above the "main"
part of the flare, and eventually made high-temperature (~6 million
kelvins) magnetic connections all the way to the northern hemisphere!