保护地球，探索宇宙，发现文明
2020 February 18 Orion over the Central Bohemian Highlands Image Credit & Copyright: Vojtěch Bauer Explanation: Do you recognize this constellation? Setting past the Central Bohemian Highlands in the Czech Republic is Orion, one of the most identifiable star groupings on the sky and an icon familiar to humanity for over 30,000 years. Orion has looked pre...
2020 January 20 Quadrantid Meteors through Orion Image Credit & Copyright: Petr Horálek Explanation: Why are these meteor trails nearly parallel? Because they were all shed by the same space rock and so can be traced back to the same direction on the sky: the radiant of the Quadrantid Meteor Shower. This direction used to be toward the old constellation ...
2020 January 2 The Fainting of Betelgeuse Image Credit & Copyright: Jimmy Westlake (Colorado Mountain College) Explanation: Begirt with many a blazing star, Orion the Hunter is one of the most recognizable constellations. In this night skyscape the Hunter’s stars rise in the northern hemisphere’s winter sky on December 30, 2019, tangled in ba...
2019 December 12 Decorating the Sky Image Credit & Copyright: Leonardo Julio (Astronomia Pampeana) Explanation: Bright stars, clouds of dust and glowing nebulae decorate this cosmic scene, a skyscape just north of Orion’s belt. Close to the plane of our Milky Way galaxy, the wide field view spans about 5.5 degrees. Striking bluish M78, a reflection...
版权：NASA 阿耳忒弥斯1号（Artemis I）飞船已经移交进行重要测试；商业乘员计划（Commercial Crew Program）又迈进一大步；沙尘暴与火星上水的消失之间可能存在关联……最近新闻速递，尽在「本周NASA」！ 用于执行美国航空航天局（NASA）阿耳忒弥斯1号任务的猎户座（Orion）飞船于11月24日抵达俄亥俄州，搭乘的是NASA超级古比鱼（Super Guppy）运输机。猎户座飞船由乘员舱（crew module）和欧洲制造的服务舱（service module）组成，将在NASA位于俄亥俄州桑达斯基的梅溪观测站（Plum Brook Station）进行测试。在为期四个月的测试中，猎户座会被置于极端环境里，模拟它将在月球进行的三周任务期间所经历的环境条件，从而确认所有组件和系统在太空...
2019 November 22 Orion Rising Image Credit & Copyright: Vitalij Kopa Explanation: Looking toward the east in the early hours of a September morning this single exposure made with tripod and camera captured a simple visual experience. Rising above the tree-lined slope are familiar stars in planet Earth’s northern night and the constellation Orion th...
2019 October 30 M42: Inside the Orion Nebula Image Credit & Copyright: Josep M. Drudis & Don Goldman Explanation: The Great Nebula in Orion, an immense, nearby starbirth region, is probably the most famous of all astronomical nebulas. Here, glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud only 1500 light-ye...
北京时间今日凌晨2时，NASA局长吉姆·布莱恩斯汀（Jim Bridenstine）在华盛顿总部公布了下一代阿尔特弥斯宇航服，这两套宇航服将用于载人登月和登陆火星。 NASA展示的这两套宇航服，一套为猎户座舱内宇航服，一套在探索月球南极表面时使用，称为xEMU。xEMU月面舱外活动宇航服是阿波罗宇航服，以及目前国际空间站舱外太空行走时穿着的宇航服的改进版，这种新型的宇航服大范围地适合宇航员的身材，并且在月面的舒适性和移动性都得到了改善。 从左至右分别是，约翰逊航天中心的宇航服工程师Amy Ross，NASA局长Jim Bridenstine，约翰逊航天中心的宇航服工程师Kristine Davis，约翰逊航天中心猎户座载人飞船生存系统项目经理Dustin Gohmert。 NASA/Joel Kowsky Cr...
2019 October 6 The Horsehead Nebula Image Credit & Copyright: José Jiménez Priego Explanation: The Horsehead Nebula is one of the most famous nebulae on the sky. It is visible as the dark indentation to the red emission nebula in the center of the above photograph. The horse-head feature is dark because it is really an opaque dust cloud that lies in fron...
视频来源：NASA 2020年，阿尔忒弥斯计划（Artemis program）的第一阶段Artemis I将引领我们开启月球到火星人类探索。而在今年7月，猎户座（Orion）飞船的搭建工作已圆满完成，也已完美通过了大部分测试，即将前往俄亥俄州进入最终的主测试阶段，主测试完成后，猎户座飞船就能与空间发射系统（Space Launch System，SLS）的火箭整合，进行万众期待的关键性发射。 在美国航空航天局（NASA）位于俄亥俄州桑达斯基的梅溪观测站（Plum Brook Station）站中，有着世界一流的太空环境测试设施，即空间环境综合体系（Space Environments Complex，SEC），其中包括：最大的太空模拟真空室、功能最强大的航天器声学测试室，以及世界上容量最大、功能最强的航天器振...