Huygens: A Descent Through Titan’s Haze

Transcript

Huygens was a European lander carried to Saturn by the Cassini spacecraft. Its task was to study Titan’s atmosphere and measure conditions as it descended toward the surface. On 14 January 2005, Huygens entered Titan’s atmosphere. It began transmitting data during its parachute descent, then landed at 11:38 in the morning, Universal Time. After touchdown, it continued transmitting for three hours and ten minutes. The images revealed a flat plain scattered with pebbles. The ground looked like sand, but the grains were made of ice. The terrain also showed signs that liquid had shaped it in the recent past. The image return was incomplete: a communications-program problem meant Cassini received 376 images, rather than the roughly 700 intended. Huygens’s descent and landing gave researchers direct observations of a world where liquid activity had shaped the landscape. It remains a measured milestone in exploring the outer Solar System.