作者姓名:NASA中文

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奥米茄星团

2019 August 24 Millions of Stars in Omega Centauri Image Credit & Copyright: Michael Miller, Jimmy Walker Explanation: Globular star cluster Omega Centauri, also known as NGC 5139, is some 15,000 light-years away. The cluster is packed with about 10 million stars much older than the Sun within a

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NASA观测到一颗岩质系外行星的表面

这幅艺术家笔下的插图描绘的是系外行星LHS3844b,其质量是地球的1.3倍,环绕着一颗M矮星运行。根据美国国家航空航天局(NASA)斯皮策太空望远镜的观测表明,该行星表面可能主要被黑暗的熔岩覆盖,没有明显的大气层。 版权:NASA /加州理工学院喷气推进实验室(JPL-Caltech)/R. Hurt(红外数据处理与分析中心,IPAC) 一项利用NASA斯皮策太空望远镜的数据进行的新研究提供了一个难得的机会,使我们得以一窥围绕太阳之外的恒星运行的岩质行星表面的情况。8月19日发表在《自然》(Nature)杂志上的这项研究表明,该行星的表面可能类似于地球的卫星月球或者水星:该行星可能几乎没有大

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NGC 1499:加州星云

2019 August 23 NGC 1499: The California Nebula Image Credit & Copyright: Sara Wager Explanation: Drifting through the Orion Arm of the spiral Milky Way Galaxy, this cosmic cloud by chance echoes the outline of California on the west coast of the United States. Our own Sun also lies within the Mi

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邻近的旋涡星系NGC 4945

2019 August 22 Nearby Spiral Galaxy NGC 4945 Image Credit & Copyright: Martin Pugh Explanation: Large spiral galaxy NGC 4945 is seen edge-on near the center of this cosmic galaxy portrait. In fact, it’s almost the size of our Milky Way Galaxy. NGC 4945’s own dusty disk, young blue st

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国家太空委员会的一个视野

A member of the audience takes a picture with their phone as Vice President Mike Pence is introduced during the sixth meeting of the National Space Council, Tuesday, Aug. 20, 2019, at the Smithsonian National Air and Space Museum’s Steven F. Udvar-Hazy Center in Chantilly, Va. Chaired by the V

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SpaceX龙飞船机组人员紧急疏散演练

A quick moving storm passes as teams from NASA and SpaceX practice procedures for medical emergency evacuation onboard the GO Searcher ship, Friday, August 15, 2019, in the Atlantic Ocean off the coast of Cape Canaveral, Florida. SpaceX will use the GO Searcher ship during the Demo-2 mission to reco

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肉眼几乎可见的猎户座

2019 August 21 The Orion You Can Almost See Image Credit & Copyright: John Gleason & Rogelio Bernal Andreo Explanation: Do you recognize this constellation? Although it is one of the most recognizable star groupings on the sky, this is a more full Orion than you can see — an Orion only

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3D打印和航空的未来

Today is National Aviation Day and progress is ongoing in the next evolution of air mobility – all thanks to emerging 3D printing technology. This image of a full-scale model of Langley Aerodrome No. 8 is being constructed at NASA’s Langley Research Center. The LA-8 model will to contribute to the a

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动画:黑洞周围的旋涡状吸积盘

2019 August 20 Animation: Spiral Disk around a Black Hole Illustrated Animation Credit: ESA, NASA, Hubble, M. Kornmesser Explanation: What would it look like to orbit a black hole? Many black holes are surrounded by swirling pools of gas known as accretion disks. These disks can be extremely hot, an

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