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。
Orion Mission Evaluation Room (MER) team member works during an Artemis II mission simulation on Aug. 19, 2025, from the new Orion MER inside the Mission Control Center at NASA’s Johnson Space Center in Houston.
2025年8月19日，在位于休斯敦NASA约翰逊航天中心任务控制中心的新猎户座任务评估室（MER）内，一名团队成员正在参与阿尔忒弥斯2号任务模拟工作。
NASA astronauts Jonny Kim and Zena Cardman, both Expedition 73 Flight Engineers, pose for a portrait inside the International Space Station‘s Unity module during a break in weekend housecleaning and maintenance activities.
在这张照片中，NASA宇航员金乔尼和泽娜·卡德曼——第73号远征队的飞行工程师——在国际空间站团结号节点舱内合影留念，正值他们在周末进行清洁与维护工作间隙。
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。
What’s Up for September? Saturn puts on a spectacular show, a sunrise conjunction shines bright, and we ring in the autumnal equinox.
九月的天空会发生什么？土星上演壮观天象，日出近合璀璨夺目，而秋分也随之到来。
A nebula is shown that appears roughly the shape of Africa. The complex radio image shows rings and jets. Please see the explanation for more detailed information.
一张星云图像呈现出近似非洲大陆的轮廓。复杂的射电图像显示了环状结构和喷流。有关更多详细信息，请参阅说明。
On July 26, 2025, NASA astronaut Nichole Ayers took this long-exposure photograph – taken over 31 minutes from a window inside the International Space Station’s Kibo laboratory module – capturing the circular arcs of star trails.
2025年7月26日，NASA宇航员尼科尔·艾尔斯在国际空间站希望号实验舱的舷窗前，用31分钟的长曝光拍下了这张照片，清晰记录下星空中圆弧般的星轨。
