保护地球, 探索宇宙, 发现文明
Snow and ice cover mountains of the Tien Shan range in this photograph taken from the International Space Station (ISS) on Feb. 9, 2022. The Tien Shan—which means heavenly mountains in Chinese—is one of the largest mountain ranges in the world, extending approximately 2,500 kilometers (1,550 miles) across Central Asia, mostly along the border between Kyrgyzs...
Martin Luther King, Jr.’s birthplace, Atlanta, Georgia, is seen on January 20, 2013, in this image from the International Space Station as it flew approximately 240 miles above the city. NASA honors Dr. King’s life and legacy by expanding mission equity, engaging in public service, and sharing knowledge for the benefit of all humanity. Image Credit: NASA 201...
地表水和海洋地形卫星上的摄像机拍摄到了其主要科学仪器在轨道上展开的天线。
2023年1月1日 The Largest Rock in our Solar System Image Credit: NASA, Voyager 1 spacecraft Explanation: There, that dot on the right, that’s the largest rock known in our Solar System. It is larger than every known asteroid, moon, and comet nucleus. It is larger than any other local rocky planet. This rock is so large its gravity makes it into a large bal...
1月份的天空会发生什么？
行星会有一些近距离的相遇，冬天的明亮恒星，还有机会观测彗星。
Hawaii’s big island and its two major volcanoes Mauna Kea and Mauna Loa rest under a partly cloudy sky on Feb. 8, 2022, in this view from the International Space Station. Mauna Loa, the world’s largest active volcano had been quiet for nearly 40 years. However, in 2022, the volcano began to stir, showing increased numbers of small earthquakes and subtl...
这张经典的地球照片拍摄于1972年12月7日，由最后一次阿波罗任务阿波罗17号的宇航员拍摄，当时他们正在执行登月任务，前往月球。阿波罗的轨道第一次使拍摄南极冰盖成为可能，如图所示的是南半球厚厚的云层。
12月的天空会发生什么？你的夜晚行星的亮点，包括火星的消失和天马座。 影像来源：NASA/JPL-Caltech 翻译：灼眼的粉丝 这个月的开始和结束都伴随着月球造访巨行星。12月1日，在夜空中，你会发现月亮与木星只有几指宽的距离。然后，从25日到31日，日落后向西南方向看，你会看到一轮越来越圆的月亮从土星旁边滑过，然后又从木星旁边滑过。拥有清晰地平线视野的观测者将能够在落日余晖中寻找金星和水星，它们就在地平线上方几度的地方。 12月7日是一个神奇的时刻，天空在你眼前发生了巨大的变化。这被称为月掩星，因为月球从红色星球火星前面掠过（或掩星）。北美、欧洲和北非的部分地区都能看到这一奇观。(美国东南部和东海岸的观众将看到月球刚刚掠过火星。)对于美国的观测者来说，火星会在晚上6点30分到9点之间的某个时间消失在月球后...
2022年12月1日 Artemis 1: Flight Day 13 Image Credit: NASA, Artemis 1 Explanation: On flight day 13 (November 28) of the Artemis 1 mission the Orion spacecraft reached its maximum distance from Earth. In fact, over 430,000 kilometers from Earth its distant retrograde orbit also put Orion nearly 70,000 kilometers from the Moon. In the same field of view in this v...
2022年11月23日 Earthset from Orion Image Credit: NASA, Artemis 1 Explanation: Eight billion people are about to disappear in this snapshot from space. Taken on November 21, the sixth day of the Artemis 1 mission, their home world is setting behind the Moon’s bright edge as viewed by an external camera on the outbound Orion spacecraft. The Orion was headed...