按月归档: 10 月 2020

心宿增四星云的美丽云气

2020年10月14日 The Colorful Clouds of Rho Ophiuchi Image Credit & Copyright: Amir H. Abolfath Explanation: The many spectacular colors of the Rho Ophiuchi (oh’-fee-yu-kee) clouds highlight the many processes that occur there. The blue regions shine primarily by reflected light. Blue light from the Rho Ophiuchi star system and nearby stars reflects mo...

火星、昴宿星团与仙女座星系

2020年10月13日 Mars, Pleiades, and Andromeda over Stone Lions Image Credit & Copyright: Cem Özkeser Explanation: Three very different — and very famous — objects were all captured in a single frame last month. On the upper left is the bright blue Pleiades, perhaps the most famous cluster of stars on the night sky. The Pleiades (M45) is about 45...

降落贝努小行星

2020年10月12日 Descending Toward Asteroid Bennu Video Credit: NASA, OSIRIS-REx, NASA’s Scientific Visualization Studio; Data: NASA, U. Arizona, CSA, York U., MDA Explanation: What would it be like to land on an asteroid? Although no human has yet done it, NASA’s robotic OSIRIS-REx spacecraft is scheduled to attempt to touch the surface of asteroid 1...

一周NASA新闻速览(2020.10.9)

下一批空间站乘员进行发射前准备;科学、技术以及其他货资抵达空间站;一项即将发射的商业载人飞行迎来更新……最近新闻速递,尽在「本周NASA」! Credit:NASA 包括NASA凯特·鲁宾斯(Kate Rubins)在内的前往国际空间站(International Space Station)的下一批乘员,完成了在哈萨克斯坦拜科努尔航天发射场(Baikonur Cosmodrome)的发射前训练。鲁宾斯和俄罗斯宇航员谢尔盖·雷吉科夫(Sergey Ryzhikov)以及谢尔盖·库德·斯维奇科夫(Sergey Kud-Sverchkov)计划于10月14日发射前往空间站,执行为期6个月的任务。 10月5日,诺斯罗普·格鲁曼公司(Northrop Grumman)的天鹅座(Cygnus)货运飞船抵达空间站,运载了近...

澳大利亚尖石阵上空的银河

2020年10月11日 Milky Way over the Pinnacles in Australia Image Credit & Copyright: Michael Goh Explanation: What strange world is this? Earth. In the foreground of the featured image are the Pinnacles, unusual rock spires in Nambung National Park in Western Australia. Made of ancient sea shells (limestone), how these human-sized picturesque spires formed r...

室女座星系团

2020年10月10日 Virgo Cluster Galaxies Image Credit & Copyright: Fernando Pena Explanation: Galaxies of the Virgo Cluster are scattered across this deep telescopic field of view. The cosmic scene spans about three Full Moons, captured in dark skies near Jalisco, Mexico, planet Earth. About 50 million light-years distant, the Virgo Cluster is the closest lar...

虹膜星云

This beautiful, blushing nebula is unique amongst its counterparts. While many of the nebulae visible in the night sky are emission nebulae — clouds of dust and gas that are hot enough to emit their own radiation and light — Caldwell 4, otherwise known as the Iris Nebula or NGC 7023, is a reflection nebula. This means that its color comes from the scattered ...

从这个世界之外竖起大拇指

In this image from July 2020, NASA spacewalkers (from left) Bob Behnken and Chris Cassidy give a thumbs up during a spacewalk to install hardware and upgrade International Space Station systems. They were photographed by the crew from inside the cupola, the orbiting lab’s “window to the world.” Behnken arrived on the station as a member of ...

月落时分的特大天线阵

2020年10月9日 The Very Large Array at Moonset Image Credit: Jeff Hellermann, NRAO / AUI / NSF Explanation: An inspirational sight, these giant dish antennas of the Karl G. Jansky Very Large Array (VLA) rise above the New Mexico desert at moonset. Mounted on piers but transportable on railroad tracks to change the VLA’s configuration, its 27 operating antennas a...

冷海

2020年10月8日 Mare Frigoris Image Credit & Copyright: Matt Smith Explanation: Lighter than typically dark, smooth, mare the Mare Frigoris lies in the far lunar north. Also known as the Sea of Cold, it stretches across the familiar lunar nearside in this close up of the waxing gibbous Moon’s north polar region. Dark-floored, 95 kilometer wide crater P...