January 15 2013: Hyugens Probe lands on Titan, a moon of Saturn. “Sounds from a right speaker go with the Descent Imager/Spectral Radiometer activity. There’s a continuous tone that represents the strength of Huygens’ signal to Cassini. Then there are 13 different chimes – one for each of instrument’s 13 different science parts – that keep time with flashing-white-dot exposure counters. During its descent, the Descent Imager/Spectral Radiometer took 3,500 exposures.” – MyEarBot