作者姓名:NASA中文

天文·每日一图

意大利上空的红色极光

2023年11月6日 Red Aurora over Italy Image Credit & Copyright: Giorgia Hofer Explanation: What was that red glow on the horizon last night? Aurora. Our unusually active Sun produced a surface explosion a few days ago that sent out a burst of electrons, protons, and more massive charged nuclei. This […]

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哈勃望远镜提供独特的木星紫外线视图

NASA’s Hubble Space Telescope reveals an ultraviolet view of Jupiter. NASA, ESA, and M. Wong (University of California – Berkeley); Processing: Gladys Kober (NASA/Catholic University of America) This newly released image from the NASA Hubble Space Telescope shows the planet Jupiter in a color compos

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挪威上空的怪物状极光

2023年11月5日 Creature Aurora Over Norway Image Credit & Copyright: Ole C. Salomonsen (Arctic Light Photo) Explanation: It was Halloween and the sky looked like a creature. Exactly which creature, the astrophotographer was unsure (but possibly you can suggest one). Exactly what caused this eerie a

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丁基内什小行星的月出

2023年11月4日 Dinkinesh Moonrise Image Credit: NASA/Goddard, SwRI, Johns Hopkins APL, NOIRLab Explanation: Last Wednesday the voyaging Lucy spacecraft encountered its first asteroid, 152830 Dinkinesh, and discovered the inner-main belt asteroid has a moon. From a distance of just over 400 kilometers, L

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观星指南(2023年11月)

11月17日晚上,穿上暖和的衣服,前往黑暗的天空,观看狮子座流星雨的峰值。整个月都在水瓶座寻找土星——这只是天空中与水有关的几个星座之一。如果你在太阳升起之前起床,你将有机会在早上观测天空两侧的金星和木星。

天文·每日一图

月光下的木星

2023年11月3日 Jupiter by Moonlight Image Credit & Copyright: Giorgia Hofer Explanation: That bright beacon you’ve seen rising in the east just after sunset is Jupiter. Climbing high in midnight skies, our Solar System’s ruling gas giant was at its 2023 opposition, opposite the Sun in p

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来自韦伯相机的细节揭示了复杂的构图

The James Webb Space Telescope captures new details of the Crab Nebula, 6,500 light-years away, in this image released on Oct. 30, 2023. While these remains of an exploded star have been well-studied by multiple observatories, including the Hubble Space Telescope, Webb’s infrared sensitivity and res

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天炉座星系团

2023年11月2日 The Fornax Cluster of Galaxies Image Credit & Copyright: Marcelo Rivera Explanation: Named for the southern constellation toward which most of its galaxies can be found, the Fornax Cluster is one of the closest clusters of galaxies. About 62 million light-years away, it’s over

NASA·每日一图

东海岸的夜晚

While aboard the International Space Station on Oct. 26, NASA astronaut Jasmin Moghbeli captured the city lights of the northeastern United States and major urban areas including Long Island, New York; Philadelphia, Pennsylvania; and Washington, D.C. At the time of this photograph, the orbital lab w

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NASA的詹姆斯·韦伯太空望远镜改进了模拟软件

詹姆斯·韦伯太空望远镜在高分辨率的近红外光下拍摄到一对紧密结合的活跃恒星,被称为赫比格-哈罗46/47。 影像来源:NASA 詹姆斯·韦伯太空望远镜真正探索了未知的世界,展示了以前看不见的宇宙角落的令人惊叹的图像,这是因为望远镜的21英尺分段镜在太空中展开并自行组装。 数十年来,人们一直在对材料、设计和工艺进行测试,以开发太空中最大的望远镜。然而,整个项目太过复杂,无法在地面、零下400华氏度和其他类似太空的条件下进行大规模测试。 相反,工程师们依靠软件模拟来了解望远镜在不同空间条件下的表现,这项工作有助于推进整个鸡成计算机建模领域。 Ansys Zemax OpticStudio软件包,图为

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