保护地球, 探索宇宙, 发现文明
Titan, Saturn’s largest moon, looks quite small in comparison to the giant planet behind it in this natural color view from the Cassini-Huygens spacecraft. This image from Aug. 29, 2012, also shows seasonal changes occurring on Saturn; as spring comes to the northern Saturnian hemisphere, the azure blue seen fades, while winter in the south adds a bluish hue...
2023年3月12日 Saturn’s Hyperion: A Moon with Odd Craters Image Credit: NASA, ESA, JPL, SSI, Cassini Imaging Team Explanation: What lies at the bottom of Hyperion’s strange craters? To help find out, the robot Cassini spacecraft that once orbited Saturn swooped past the sponge-textured moon and took images of unprecedented detail. A six-image mosaic ...
3月份的天空会发生什么？金星高高升起，而木星向太阳后方俯冲，还有一颗与你的早餐麦片同名的小行星。
2023年2月26日 Saturn’s Iapetus: Moon with a Strange Surface Image Credit: NASA, ESA, JPL, SSI, Cassini Imaging Team Explanation: What would make a moon look like a walnut? A strange ridge that circles Saturn’s moon Iapetus’s equator, visible near the bottom of the featured image, makes it appear similar to a popular edible nut. The origin of t...
2023年2月5日 Enceladus by Saturnshine Image Credit: NASA; ESA, JPL, Cassini Imaging Team, SSI; Color Composite: Gordan Ugarkovic Explanation: This moon is shining by the light of its planet. Specifically, a large portion of Enceladus pictured here is illuminated primarily by sunlight first reflected from the planet Saturn. The result is that the normally snow-w...
2月份的天空会发生什么？
最亮的行星聚集在一起，御夫座和两个你可能想要了解的天狼星星团。
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。
2022年12月23日 Cassini Looks Out from Saturn Image Credit: NASA, JPL-Caltech, Space Science Institute Explanation: This is what Saturn looks like from inside the rings. In 2017, for the first time, NASA directed the Cassini spacecraft to swoop between Saturn and its rings. During the dive, the robotic spacecraft took hundreds of images showing unprecedented det...
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。
2022年11月26日 Saturn at Night NASA, JPL-Caltech, Space Science Institute, Mindaugas Macijauskas Explanation: Saturn is still bright in planet Earth’s night skies. Telescopic views of the distant gas giant and its beautiful rings often make it a star at star parties. But this stunning view of Saturn’s rings and night side just isn’t possible f...