2021 年 1 月

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北美洲的夜空

2021年01月29日 North American Nightscape Composite Image Credit & Copyright: Liron Gertsman Explanation: On January 21, light from the Moon near first quarter illuminated the foreground in this snowy mountain and night scene. Known as The Lions, the striking pair of mountain peaks are north of Van […]

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星系M66的特写影像

2021年01月28日 Messier 66 Close Up Image Credit: NASA, ESA, Hubble; Processing & Copyright: Leo Shatz Explanation: Big, beautiful spiral galaxy Messier 66 lies a mere 35 million light-years away. The gorgeous island universe is about 100 thousand light-years across, similar in size to the Milky Wa

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星系NGC 5775的垂直磁场

2021年01月27日 The Vertical Magnetic Field of NGC 5775 Image Credit: NRAO, NASA, ESA, Hubble; Processing & Text: Jayanne English (U. Manitoba) Explanation: How far do magnetic fields extend up and out of spiral galaxies? For decades astronomers knew only that some spiral galaxies had magnetic fiel

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NGC 1316的中心: 星系碰撞之后

2021年01月26日 Central NGC 1316: After Galaxies Collide Image Credit: NASA, ESA, Hubble; Processing & Copyright: Daniel Nobre Explanation: How did this strange-looking galaxy form? Astronomers turn detectives when trying to figure out the cause of unusual jumbles of stars, gas, and dust like NGC 1

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欢迎深空网络的新成员

A powerful new antenna has been added to the NASA Space Communications and Navigation’s Deep Space Network (DSN), which connects us to the space robots exploring our solar system. Called Deep Space Station 56, or DSS-56, the dish is now online and ready to communicate with a variety of missions, inc

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NASA一周新闻(2021.1.22)

“绿色运行”(Green Run)点火测试的进展;猎户座(Orion)飞船的发射前准备工作仍在继续;小型太阳结构的一个新发现……最近新闻速递,尽在「本周NASA」! Credit:NASA 1月16日太空发射系统(Space Launch System,SLS)火箭核心级点火测试后的初步审查显示,火箭的硬件状况良好。官方表示,计划持续8分钟的测试在点火1分钟后熄火的原因,在于为地面测试而设计的保守参数,目的是确保火箭核心级安装到B-2试验台(B-2 Test Stand)上时的安全性;若在实际飞行中发生这种情况,火箭将继续飞行。团队正在评估SLS的下一步计划,SLS将在阿尔忒弥斯1号(Arte

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智利火山上空的南十字

2021年01月25日 Southern Cross over Chilean Volcano Image Credit & Copyright: Tomáš Slovinský Explanation: Have you ever seen the Southern Cross? This famous four-star icon is best seen from Earth’s Southern Hemisphere. The featured image was taken last month in Chile and captures the Souther

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NASA为COVID-19救援工作提供地面支持

NASA and Samaritans Purse DC-8 aircrafts parked on the ramp in front of NASA’s Armstrong Flight Research Center Building 703. Credits: NASA Photo / Lauren Hughes NASA has once again joined forces with the community in the continuing effort to fight COVID-19. The agency provided specialized ground su

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邻近的大质量螺旋星系NGC 2841

2021年01月24日 Massive Nearby Spiral Galaxy NGC 2841 Image Credit: NASA, ESA, Hubble, Subaru; Composition & Copyright: Roberto Colombari Explanation: It is one of the more massive galaxies known. A mere 46 million light-years distant, spiral galaxy NGC 2841 can be found in the northern constellati

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