晚安，月亮

An illuminated waning gibbous moon contrasts the deep black of space as the International Space Station soared 270 miles over the Southern Ocean.
NASA

The waning gibbous moon stands out against the dark backdrop of space in this April 26, 2024, image from the International Space Station. Waning gibbous is one of eight moon phases, occurring after the full moon. The Sun always illuminates half of the Moon while the other half remains dark, but how much we can see of that illuminated half changes as the Moon travels through its orbit. As the Moon begins its journey back toward the Sun, the lighted side appears to shrink, but the Moon’s orbit is simply carrying it out of view from our perspective.

See NASA’s interactive map for observing the Moon—from Earth—every day of the year.

Image Credit: NASA

当国际空间站以270英里的高度飞越南大洋时，一轮被照亮的渐亏凸月与深邃的黑色太空形成鲜明对比。
NASA

在这张2024年4月26日由国际空间站拍摄的图片中，渐亏凸月在黑暗的太空背景下格外显眼。亏凸月是八个月相之一，发生在满月之后。太阳总是照亮月球的一半，而另一半保持黑暗，但随着月球在其轨道上运行，我们可以看到的被照亮的部分会发生变化。当月球开始其背对太阳的旅程时，被照亮的一面似乎缩小了，但月球的轨道只是将它带到了我们的视野之外。

查看NASA的互动地图，了解全年每天从地球上观测到月球的情况。

图片来源: NASA