This movie is a blend of the EUVI 171-Angstrom and 195-Angstrom wavelengths (yellow component = 171, red = 195). These correspond to solar atmosphere temperatures of 0.9-million degrees and 1.4-million degrees Kelvin, respectively. The movie is made from one image pair per hour for the entire month of August 2010. The 'blocky noise' you see around the edge of the movie is a result of the compression algorithm we use for sending the data down from the spacecraft