地球资源9号卫星准备发射

地球资源9号卫星准备发射

ByNASA中文

On Monday, Sept. 27, 2021, at 2:12 EDT a United Launch Alliance Atlas V rocket with the Landsat 9 satellite is slated to lift off on a mission to observe Earth, the planet we call home. 2021年9月27日星期一，美国东部时间2:12，美国联合发射联盟阿特拉斯五号火箭携带地球资源9号卫星计划发射升空，执行观测地球的任务。 The Landsat 9 satellite is a joint NASA/U.S. Geological Survey mission that will continue 50-year legacy of monitoring Earth’s land and coastal regions. 地球资源9号卫星是NASA和美国地质调查局联合研制的地质调查卫星，地质调查任务将延续50年来监测地球陆地和沿海地区的传统。 This image was taken on Sunday, Sept. 26, 2021, at Vandenberg Space Force Base in California. 这张图片拍摄于2021年9月26日星期日，在加利福尼亚州范登堡空军基地。 9 Things About Landsat 9 (video) 关于地球资源9号卫星的9件事（视频，已汉化） Image Credit: NASA/Bill Ingalls 图片来源：NASA/Bill Ingalls

发现海王星

发现海王星

ByNASA中文

On the night 175 years ago on Sept. 23-24, 1846, astronomers discovered Neptune, the eighth planet orbiting our Sun. The discovery was made based on mathematical calculations of its predicted position due to observed perturbations in the orbit of the planet Uranus. The discovery was made using a telescope since Neptune is too faint to be visible to the naked eye, and astronomers soon discovered a moon orbiting the planet. More than a century later, a second moon was discovered orbiting the planet. Our knowledge of distant Neptune greatly increased from the scientific observations made during Voyager 2’s flyby in 1989, including the discovery of five additional moons and confirmation of dark rings orbiting the planet. 在175年前，也就是1846年9月23日至24日的晚上，天文学家发现了海王星，第八颗围绕太阳运行的行星。由于观测到天王星轨道上的扰动，根据对其预测位置的数学计算得出了这一发现。这一发现是通过望远镜发现的，因为海王星太暗了，肉眼无法看到。天文学家很快发现了一颗围绕该行星运行的卫星。一个多世纪后，又发现了一颗围绕这颗行星运行的卫星。1989年“旅行者2号”飞掠海王星期间的科学观测大大增加了我们对遥远的海王星的了解，其中包括发现了另外5颗卫星，并确认了围绕该行星运行的暗环。 This image of Neptune was taken by Voyager…

从太空中看到地球的辉光

从太空中看到地球的辉光

ByNASA中文

The atmospheric glow blankets the Earth’s horizon beneath the stars, as shown in a photo taken while the International Space Station orbited 261 miles above the Pacific Ocean southeast of Japan. 如国际空间站在日本东南的太平洋上空261英里处运行时拍摄的照片所示，大气层的光辉覆盖了星空下的地球地平线。 On Tuesday, Sept. 28, three residents of the station will take a short ride aboard a Soyuz MS-18, relocating the spacecraft to prepare for the arrival of the next set of station crew members. 9月28日星期二，空间站的三名居民将乘坐联盟号MS-18进行短暂的飞行，重新安置飞船，为下一批空间站工作人员的到来做准备。 NASA astronaut Mark Vande Hei and cosmonauts Oleg Novitskiy and Pyotr Dubrov will undock from the station’s Earth-facing Rassvet module at 8:21 a.m. EDT. They will dock again at the Nauka Multipurpose Laboratory Module at 9 a.m. This will be the first time a spacecraft has attached to the new Nauka module, which arrived at the station in…

露西要上太空了！

露西要上太空了！

ByNASA中文

Time capsules from the birth of our Solar System more than 4 billion years ago, the swarms of Trojan asteroids associated with Jupiter are thought to be remnants of the primordial material that formed the outer planets. The Trojans orbit the Sun in two loose groups, with one group leading ahead of Jupiter in its path, the other trailing behind. Clustered around the two Lagrange points equidistant from the Sun and Jupiter, the Trojans are stabilized by the Sun and its largest planet in a gravitational balancing act. These primitive bodies hold vital clues to deciphering the history of the solar system, and perhaps even the origins of organic material on Earth. 来自40亿多年前太阳系诞生的时间胶囊，与木星有关的特洛伊群小行星就被认为是构成外行星的原始物质的残余物。特洛伊群小行星以两组松散的方式环绕太阳运行，其中一组在其轨道上领先于木星，另一组紧随其后。特洛伊群小行星围绕着与太阳和木星等距的两个拉格朗日点，在重力平衡作用下被太阳和它最大的行星稳定在一个引力平衡的作用中。这些原始天体为解读太阳系的历史，甚至地球上有机物质的起源提供了重要线索。 NASA’s Lucy will be the first space mission to study the Trojans….

宇航员星出彰彦在空间站上进行DNA测序

宇航员星出彰彦在空间站上进行DNA测序

ByNASA中文

Space Station Commander Akihiko Hoshide of the Japan Aerospace Exploration Agency conducts research using DNA sequencing to help monitor and identify microbes on spacecraft to increase the safety of future human missions to the Moon, Mars, and beyond. 日本宇宙航空研究开发机构的空间站指挥官星出彰彦（Akihiko Hoshide）利用DNA测序进行研究，以帮助监测和识别航天器上的微生物，以提高未来人类登月、火星等任务的安全性。 Image Credit: NASA 图片来源：美国国家航空航天局

巴芬湾，格陵兰岛：一个历史的视角

巴芬湾，格陵兰岛：一个历史的视角

ByNASA中文

Acquired by the Landsat 7 satellite more than 20 years ago on Sept. 3, 2000, this image is of Greenland’s western coast and the small field of glaciers that surrounds Baffin Bay. This is a false-color composite image made using near-infrared, red, and blue wavelengths. 20多年前的2000年9月3日，陆地卫星7号拍摄了这张照片，这是格陵兰岛的西海岸和环绕巴芬湾的小块冰川区域。这是一张使用近红外、红色和蓝色波长制作的假彩色合成图像。 NASA continues to monitor the planet we call home. Landsat 9, the latest in the series of Landsat Earth-monitoring satellites, is a partnership between NASA and the U.S. Geological Survey that will continue the program’s critical role in monitoring, understanding, and managing the land resources needed to sustain human life. The mission is slated to launch later in 2021. 美国航天局继续监测我们称之为家园的星球。陆地卫星9号是美国陆地卫星计划中最新的一颗地球监测卫星，是NASA和美国地质调查局之间的合作项目，它将继续发挥该计划在监测、了解和管理维持人类生活所需的土地资源方面的关键作用。该任务预计在2021年晚些时候发射。 Image Credit: U.S. Geological Survey EROS Data Center Satellite Systems Branch 影像来源：美国地质调查局EROS数据中心卫星系统处

哈勃望远镜近距离观察其31周年图像

哈勃望远镜近距离观察其31周年图像

ByNASA中文

Credits: ESA/Hubble and NASA, A. Nota, C. Britt This comparison of two images shows puffing dust bubbles and an erupting gas shell – the final acts of a monster star’s life. 这两张图片的对比显示了膨胀的尘埃气泡和喷发的气体外壳——这是一颗巨型恒星生命的最后一幕。 These new views showcase the dual nature of the star AG Carinae, which was the target of the NASA/ESA Hubble Space Telescope’s 31st anniversary image in April 2021. This new perspective is the result of Hubble’s observations of the star in 2020 and 2014, along with others captured by the telescope’s Wide Field Planetary Camera 2 in 1994. 这些新图像展示了船底座AG这颗恒星的双重性质双重性质，这是NASA/ESA哈勃太空望远镜在2021年4月拍摄的31周年纪念照片的目标。这一新的视角是哈勃望远镜在2020年和2014年对这颗恒星进行观测的结果，以及1994年由该望远镜的广角行星照相机2拍摄的其他照片。 The first image showcases details of ionized hydrogen and nitrogen emissions from the expanding shell of the nebula (seen here in red). In the second image, the color blue delineates the distribution of dust…

空中出租车飞行测试

空中出租车飞行测试

ByNASA中文

NASA’s Revolutionary Vertical Lift Technology Project’s Mobile Acoustics Facility is parked in the background of Joby’s prototype aircraft near Big Sur, California. As the aircraft flew planned test scenarios, NASA’s Advanced Air Mobility National Campaign team collected information about how the vehicle moved, how the vehicle sounded, and how the vehicle communicated with controllers during recent testing from Aug. 30-Sept. 10. Learn more about the testing. Image Credit: Joby Aviation 美国宇航局的革命性垂直升降技术项目的移动声学设施停在加州大苏尔附近的乔比原型飞机的背景中。在飞机飞行计划中的测试场景时，美国宇航局的先进空中机动性国家运动团队在最近8月30日至9月10日的测试中收集了关于飞行器如何移动、飞行器如何发出声音以及飞行器如何与控制人员沟通的信息。 了解更多关于测试的信息。 图片来源：乔比航空

戴安娜·特鲁希略：从哥伦比亚到火星

戴安娜·特鲁希略：从哥伦比亚到火星

ByNASA中文

Lee esta historia en español aquí. Diana Trujillo, an aerospace engineer, is currently Technical Group Supervisor for Sequence Planning and Execution and a Tactical Mission Lead for the Mars Perseverance rover. Born and raised in Colombia, Trujillo immigrated to the U.S. at the age of 17 to pursue her dream of working for NASA. While enrolled in English-as-a-second-language courses, she also worked full time to support her studies in community college and later the University of Florida and University of Maryland. She has held several roles for NASA and JPL, including Mars Curiosity rover mission lead, deputy project system engineer, and Deputy Team Chief of Engineering Operations on Curiosity. Trujillo has also been active in sharing the excitement and opportunities of STEM with the public….

拉贾·查里为SpaceX载人3号任务进行训练

拉贾·查里为SpaceX载人3号任务进行训练

ByNASA中文

In this image, NASA astronaut and SpaceX Crew-3 Commander Raja Chari trains aboard the SpaceX Crew Dragon spacecraft in Hawthorne, California. Chari was selected by NASA to join the 2017 Astronaut Candidate Class and reported for duty in August 2017. The Iowa native graduated from the U.S. Air Force Academy in 1999 with bachelor’s degrees in astronautical engineering and engineering science. He earned a master’s degree in aeronautics and astronautics from Massachusetts Institute of Technology and graduated from the U.S. Naval Test Pilot School. He also logged more than 2,500 hours of flight time in the F-35, F-15, F-16, and F-18. The Crew-3 mission is part of NASA’s Commercial Crew Program and is the third time that SpaceX Crew Dragon spacecraft and Falcon 9 rocket…