See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
Earth without water is shown on the right, while Jupiter’s moon Europa is shown on the left. Superposed on each object is a blue sphere estimating the amount of water each object contains. The blue spheres are about the same size. Please see the explanation for more detailed information.
右侧显示的是没有水的地球，左侧显示的是木星的卫星木卫二。每个物体上都叠加了一个蓝色球体，用于估算每个物体所含的水量。这些蓝色球体大小大致相同。有关更多详细信息，请参阅说明。
A starfield surrounds a several large nebulas that appear mostly red but also white and blue. Dark dust and blue filaments also populate the frame. Please see the explanation for more detailed information.
星场环绕着几个大型星云，这些星云主要呈现红色，但也有一些白色和蓝色。画面中还布满了暗色尘埃和蓝色丝状结构。有关更多详细信息，请参阅说明。
