Huygens Probe from the Cassini Mission

The Huygens probe was launched to Saturn's moon Titan from the Cassini spacecraft. The probe separated from the Cassini orbiter on December 25, 2004, and landed on Titan on January 14, 2005. This was the first landing ever accomplished in the outer solar system. It touched down on land, although the possibility that it would touch down in an ocean was also taken into account in its design. The probe continued to send data for about 90 minutes after reaching the surface.

This artist's rendering of the Huygens craft on the surface of Titan is credited to ESA - C. Carreau. 这张描绘海王星探测器在泰坦表面的插图归 credit 到 ESA - C. Carreau。

The probe was 1.3 meters across. It took 2 hours and 28 minutes to descend by parachute through TitanÕs atmosphere, blasted by winds of up to 430 km/h. Once it touched down, Huygens spent another 70 minutes transmitting more data before the Cassini spacecraft moved out of range. The Huygens signal then continued to be received for another 2 hours by a network of radio telescopes on Earth.

References:
Huygens Probe

Wiki Huygens Probe

Huygens spacecraft

Fifth anniversary summary of Huygens.