2020年12月12日 Saturn and Jupiter in Summer 2020 Image Credit & Copyright: Tunc Tezel (TWAN), Onur Durma Explanation: During this northern summer Saturn and Jupiter were both near opposition, opposite the Sun in planet Earth’s sky. Their paired retrograde motion, seen about every 20 years, i […]
2020年12月08日 Great Conjunction over Sicilian Lighthouse Image Credit & Copyright: Kevin Saragozza Explanation: Don’t miss the coming great conjunction. In just under two weeks, the two largest planets in our Solar System will angularly pass so close together in Earth’s sky that the Moon wo
Credit: NASA/JPL-Caltech 十二月的天空会发生什么？一场流星雨，一场木星和土星之间的罕见的近距离接触，还有冬至。 Credit: NASA/JPL-Caltech 12月带来了每年最可靠的流星雨之一，也是2020年最好的流星雨之一——双子座流星雨。这场流星雨从12月4日到17日非常活跃，因为地球在小行星法厄同3200轨道上留下的尘埃碎片的痕迹中穿行。这可能是一颗被烧毁的彗星。 双子座流星雨大多数年份都能产生大量的流星，但今年的流星雨更甚。因为流星雨的高峰期正好赶上新月的到来，因此天空变得更暗，没有月光来干扰较暗的流星，双子座流星雨在12月13日夜间至14日早晨达到高峰，前
上图为木星的卫星木卫二的艺术概念图，显示了在木卫二背向太阳的“夜侧面”，它冰冷的表面也会发光。辉光的变化和辉光本身的颜色可以揭示木卫二表面冰成分的相关信息。 图片来源：NASA / 加州理工-喷气推进实验室 新的实验在实验室中再现了木卫二（Europa）的环境，发现即使在背向太阳的“夜侧面”（nightside），这颗冰冷的卫星也闪耀着光辉，这一景象带给我们的，将远不只是炫酷的视觉效果。 天寒地冻、海洋遍布的木卫二默默地围绕木星运行，承受着辐射没完没了的无情冲击。木星用电子和其他粒子没日没夜地轰击木卫二表面，让它身处高能辐射的炼狱。然而，在这些粒子对木卫二拳打脚踢的同时，它们可能也导致了一些超
2020年11月23日 A Jupiter Vista from Juno Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Kevin M. Gill; Explanation: Why do colorful cloud bands encircle Jupiter? Jupiter’s top atmospheric layer is divided into light zones and dark belts that go all the way around the giant p
从美国发射下一批空间站成员；NASA下一个火星探测器的任务里程碑；未来火星样本返回任务的相关更新……最近新闻速递，尽在「本周NASA」！ Credit：NASA 11月8日，NASA前往国际空间站的SpaceX第一次载人飞行任务（Crew-1）宇航员抵达了佛罗里达州的肯尼迪航天中心，进行升空前的最后准备。NASA局长吉姆·布里登斯坦（Jim Bridenstine）及其他人员在现场向他们致意。SpaceX载人龙飞船被命名为“恢复力号”（Resilience），宇航员表示这反映了团队为使任务准备就绪而付出的努力。“恢复力是复原的能力、修复的愿望，我们努力存活的信念。因为我们这次的任务为所有人而存
This illustration shows the lightning phenomenon known as a sprite and what a sprite could look like in Jupiter’s atmosphere. Named after a mischievous, quick-witted character in English folklore, sprites last for only a few milliseconds. They feature a central blob of light with long tendrils
2020年10月20日 Saturn and Jupiter over Italian Peaks Image Credit & Copyright: Giorgia Hofer Explanation: Saturn and Jupiter are getting closer. Every night that you go out and check for the next two months, these two bright planets will be even closer together on the sky. Finally, in mid-December
2020年10月19日 A Flight over Jupiter Near the Great Red Spot Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Video Processing & License: Kevin M. Gill; Music: Vangelis Explanation: Are you willing to wait to see the largest and oldest known storm system in the Solar System? In the featured video, Jupite
Cyclones at the north pole of Jupiter appear as swirls of striking colors in this extreme false color rendering of an image from NASA’s Juno mission. The huge, persistent cyclone found at Jupiter’s north pole is visible at the center of the image, encircled by smaller cyclones that range in size fro
