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。
An illustration of planet Earth is shown where the Earth is tan and has no water shown on its surface. In the foreground are several small blue spheres showing how much water is known to reside on our planet. Please see the explanation for more detailed information.
这张地球插图呈现的是棕褐色，表面没有水。前景中有几个蓝色小球，显示了地球上已知的水含量。有关更多详细信息，请参阅说明。
A starry sky is shown with the busy central band of our Milky Way Galaxy showing diagonally from the upper left. Mountains are on the horizon, with trees and a stream running up from the foreground. Please see the explanation for more detailed information.
图中显示的是一片繁星满天的天空，银河系的中央盘面从左上方斜向外显示。地平线上有群山，前景中有树木和一条小溪。有关更多详细信息，请参阅说明。
Woody Hoburg took this photo of Laguna Verde’s inviting waters as the International Space Station orbited 264 miles (425 km) over South America on July 7, 2023. Laguna Verde, which has an altitude of over 14,000 feet (4,300 meters), is located in the Andes mountains of Chile. Even taller landmarks s
As sunlight and warmth increase in the spring and summer, the North Sea starts to gain swirls and tendrils of color. Phytoplankton—tiny, plant-like organisms that often float near the ocean surface—become abundant during this time, giving the shallow water the distinctive look seen in this June 14,
Floodwater (dark blue) stands out against the vegetation in agricultural fields around Tulare Lake near Corcoran, California, in this enhanced color image taken by Landsat 8 on March 29, 2023. Heavy rain and snow in the first three months of 2023 have once again brought water to Tulare’s lakebed, bu
