这些外星人仰望天空时，他们将会看到两颗土星每隔1.6天，交替在天空中划过，大小只有月亮的一半大。
If they looked up, they would see the two Saturns crossing the sky every 1.6 days, appearing half as large as the moon.
四月，绕土星运行的机器人卡西尼号土星探测器拍了这张横穿太阳系最有名的环的窄角照片。
In April, the robotic Cassini spacecraft now orbiting Saturn took this narrow-angle view looking across the Solar System's most famous rings.
2005年惠更斯号探测机器人着陆土卫六(泰坦)——土星谜一样的卫星，从土卫六厚厚的云层下面发回了第一张照片。
In 2005 the robotic Huygens probe landed on Titan, Saturn's enigmatic moon, and sent back the first ever images from beneath Titan's thick cloud layers.
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