Titan Echoes

Radar echoes of a new world were captured by the European Space Agency's Huygens probe as it descended onto Titan, Saturn's largest moon. Huygens hitched a ride aboard the Cassini spacecraft until its release towards Titan, a world some call Earth's wayward twin. As the probe approached the ground in January 2005, both the pitch and intensity of the radar echoes increased. The echoes have been converted into this audio file.