Just after sunrise, the waning gibbous moon sets just behind a waving United States flag on March 19, 2025, in this image from NASA’s Michoud Assembly Facility in New Orleans. The waning gibbous moon phase comes after the full moon. As the Moon begins its journey back toward the Sun, the opposite side of the Moon now reflects the Moon’s light. The lighted side appears to shrink, but the Moon’s orbit is simply carrying it out of view from our perspective. The Moon also rises later and later each night.
Image credit: NASA/Michael DeMocker
2025年3月19日清晨，正当太阳升起，一轮残月在迎风飘扬的美国国旗背后缓缓落下——这一幕摄于NASA位于新奥尔良的米修德装配厂（Michoud Assembly Facility）。所谓的亏凸月出现在满月之后，标志着月亮开始其回归太阳方向的旅程。此时，月亮的另一侧反射太阳光，从地球上看，明亮部分似乎在逐渐缩小，但实际上这只是因为月亮在轨道上的运动将其逐渐带出我们的视野。同时，月亮每天的升起时间也会越来越晚。
图片来源: NASA/Michael DeMocker
