保护地球，探索宇宙，发现文明
2023年2月25日 Crescent Moon Occultation Image Credit & Copyright: Fefo Bouvier Explanation: On February 22, a young Moon shared the western sky at sunset with bright planets Venus and Jupiter along the ecliptic plane. The beautiful celestial conjunction was visible around planet Earth. But from some locations Jupiter hid for a while, occulted by the cresce...
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。
在揭示了木卫三（Ganymede）和木卫二（Europa）的大量细节后，木星探测任务将目光投向了姐妹卫星木卫一（Io）。
2022年12月11日 Io in True Color Image Credit: NASA, JPL, Galileo Project Explanation: The strangest moon in the Solar System is bright yellow. The featured picture, an attempt to show how Io would appear in the “true colors” perceptible to the average human eye, was taken in 1999 July by the Galileo spacecraft that orbited Jupiter from 1995 to 2003....
In this illustration by Rick Giudice from August 1973, the Pioneer 10 spacecraft passes by the gas giant planet Jupiter. The spacecraft’s primary goal was to explore Jupiter, its satellites, its magnetic field, and trapped radiation belts. Pioneer 10 was the first satellite to pass through an asteroid belt and the first spacecraft to obtain detailed im...
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。
11月的天空会发生什么？月食，月球和行星，以及狮子座流星雨。
2022年10月25日 Jupiter Rotates as Moons Orbit Video Credit & Copyright: Makrem Larnaout Explanation: Jupiter and its moons move like our Sun and its planets. Similarly, Jupiter spins while its moons circle around. Jupiter’s rotation can be observed by tracking circulating dark belts and light zones. The Great Red Spot, the largest storm known, rotates to b...
During its 40th close pass by Jupiter, our Juno spacecraft saw Ganymede cast a large, dark spot on the planet on Feb. 25, 2022. JunoCam captured this image from very close to Jupiter, making Ganymede’s shadow appear especially large. At the time the raw image was taken, the Juno spacecraft was about 44,000 miles (71,000 kilometers) above Jupiter’s cloud tops...