惠更斯号拍摄的土卫六表面
(原标题: The Surface of Titan from Huygens)
2025-11-30
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如果你能站在土卫六上——你会看到什么？这张从土卫六上拍摄的彩色照片展现了土星最大卫星上陌生而遥远的风景。2005年，欧空局的惠更斯探测器在经过2.5小时的下降后，记录下了这一场景。地面上的岩石沐浴在诡异的橙色光线中，很可能是由水和碳氢化合物组成的，这些岩石在零下179摄氏度的不适宜温度下被冻结成固体。中央下方左侧的浅色大岩石只有15厘米宽，距离85厘米远。据信，这艘碟形飞船已经深入土卫六表面一个有湿沙或粘土稠度的地方约15厘米。“惠更斯”号的电池使探测器能够在着陆后90多分钟内采集和传输数据。土卫六奇特的化学环境可能与生命进化前的地球有相似之处。
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If you could stand on Titan -- what would you see? The featured color view from Titan gazes across an unfamiliar and distant landscape on Saturn's largest moon. The scene was recorded by ESA's Huygens probe in 2005 after a 2.5-hour descent through a thick atmosphere of nitrogen laced with methane. Bathed in an eerie orange light at ground level, rocks strewn about the scene could well be composed of water and hydrocarbons frozen solid at an inhospitable temperature of negative 179 degrees C. The large light-toned rock below and left of center is only about 15 centimeters across and lies 85 centimeters away. The saucer-shaped spacecraft is believed to have penetrated about 15 centimeters into a place on Titan's surface that had the consistency of wet sand or clay. Huygen's batteries enabled the probe to take and transmit data for more than 90 minutes after landing. Titan's bizarre chemical environment may bear similarities to planet Earth's before life evolved.