Those rays from the sun directly reflected from the lit side of the rings onto the planet strike and illuminate the night-side southern hemisphere, as seen in the full resolution.
那些来自太阳的光线实则反射自光环的明亮面，然后投至土星隐没在黑夜中的南半球，正如图中所示。
2
Night has now fallen on the far side of the moon; sunlight will not return until the start of February.
夜幕降临在月球背面；直到二月初阳光才会重现。
3
During an eclipse, the sun, Earth and moon line up, leaving a darkened moon visible to observers on the nightside of the planet.