今天是国旗日

今天是国旗日

ByNASA中文

Flag Day is celebrated on June 14 each year and commemorates the adoption of the flag of the United States on June 14, 1777, by the Second Continental Congress. NASA flies the U.S. flag on its missions throughout our solar system. In this iconic image from the Apollo 11 lunar landing, Commander Neil Armstrong snapped this picture of Buzz Aldrin saluting the flag at Tranquility Base. Learn More Gallery: The American Flag in U.S. Missions Flying High: The Stars and Stripes in Space Image Credit: NASA 每年6月14日是国旗日，纪念1777年6月14日第二届大陆会议通过美国国旗。 NASA在其所有太阳系的任务中都悬挂美国国旗。 在这张阿波罗11号登月的标志性图片中，指挥官尼尔·阿姆斯特朗拍下了巴兹·奥尔德林在宁静基地向国旗致敬的照片。 了解更多信息 画廊：任务中的美国国旗展翅高飞：太空中的星条旗 影像来源：NASA

JAXA宇航员星出彰彦与学生交谈

JAXA宇航员星出彰彦与学生交谈

ByNASA中文

Japan Aerospace Exploration Agency (JAXA) astronaut Akihiko Hoshide speaks with students during a visit to Arlington Science Focus Elementary School, Friday, June 10, 2022, in Arlington, Virginia. Hoshide and his crewmates from NASA’s SpaceX Crew-2 completed the agency’s second long-duration commercial crew mission to the International Space Station in November 2021. Image Credit: NASA/Aubrey Gemignani 2022年6月10日，星期五，在弗吉尼亚州阿灵顿市，日本宇宙航空研究开发机构（JAXA）宇航员星出彰彦（Akihiko Hoshide）在参观阿灵顿科学中心小学期间与学生交谈。 2021 11月，霍希德和来NASA SpaceX Crew-2的机组人员完成了该机构前往国际空间站的第二次长期商业载人任务。 图片来源：NASA/Aubrey Geminani

哈勃望远镜研究了一个神秘的星团

哈勃望远镜研究了一个神秘的星团

ByNASA中文

Like Sherlock Holmes’s magnifying glass, the NASA/ESA Hubble Space Telescope can peer into an astronomical mystery in search of clues. The enigma in question concerns the globular cluster Ruprecht 106, pictured here. Unlike most globular clusters, Ruprecht 106 may be what astronomers call a single population globular cluster. While the majority of stars in a globular cluster formed at approximately the same location and time, it turns out that almost all globular clusters contain at least two groups of stars with distinct chemical compositions. The newer stars will have a different chemical make-up that includes elements processed by their older, massive cluster companions. A tiny handful of globular clusters do not possess these multiple populations of stars, and Ruprecht 106 is a member of this…

当星系团碰撞时

当星系团碰撞时

ByNASA中文

There is a deep connection between some of the largest, most energetic events in the universe and much smaller, weaker ones powered by our own Sun. The results come from a long observation with NASA’s Chandra X-ray Observatory of Abell 2146, a pair of colliding galaxy clusters located about 2.8 billion light years from Earth. Galaxy clusters contain hundreds of galaxies and huge amounts of hot gas and dark matter and are among the largest structures in the universe. Collisions between galaxy clusters release enormous amounts of energy unlike anything witnessed since the big bang and provide scientists with physics laboratories that are unavailable here on Earth. Learn more: Colossal Collisions Linked to Solar System Science Image Credit: X-ray: NASA/CXC/Univ. of Nottingham/H. Russell et al.;…

从国际空间站看太平洋

从国际空间站看太平洋

ByNASA中文

The International Space Station orbits into a dawn 261 miles above a cloudy Pacific Ocean in this image from April 2022. Not only does the station crew snap beauty shots of the planet we call home, the crew also conducts a variety of Earth and space science, including observations of the world’s oceans. NASA also has a variety of Earth-observing missions and even studies ocean worlds throughout our solar system. #WorldOceansDay Resources Search Space Station Research Learn More About NASA’s Earth-Observing Missions Why Study the Oceans? Ocean Worlds: Water in the Solar System and Beyond 这张照片拍摄于2022年4月，国际空间站在多云的太平洋上空261英里的轨道上进入黎明。 空间站工作人员不仅拍摄我们称之为家的星球的美丽照片，而且工作人员还进行各种地球和太空科学，包括对世界海洋的观测。 NASA也有各种各样的地球观测任务，甚至研究太阳系中的海洋世界。 #WorldOceansDay 资源 搜索空间站研究 了解更多有关NASA地球观测任务的信息 为什么要研究海洋？ 海洋世界：太阳系内外的水

金星上的狄金森陨石坑

金星上的狄金森陨石坑

ByNASA中文

This November 1996 image from Magellan shows Dickinson, an impact crater in the northeastern Atalanta region of Venus. The image is approximately 115 miles (185 kilometers) wide at the base and 43 miles (69 kilometers) in diameter. The crater is complex, characterized by a partial central ring and a floor flooded by radar-dark and radar-bright materials. Hummocky, rough-textured ejecta extend all around the crater, except to the west. The lack of ejecta to the west may indicate that the impactor that produced the crater was an oblique impact from the west. Extensive radar-bright flows that emanate from the crater’s eastern walls may represent large volumes of impact melt, or they may be the result of volcanic material released from the subsurface during the cratering event….

阿尔忒弥斯一号月球火箭返回发射台进行测试

阿尔忒弥斯一号月球火箭返回发射台进行测试

ByNASA中文

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft leaves the Vehicle Assembly Building atop a mobile launcher on June 6, 2022, at NASA’s Kennedy Space Center in Florida. At approximately 8:20 a.m. EDT, NASA’s Artemis I Moon rocket arrived at the spaceport’s Launch Complex 39B after an eight-hour journey ahead of the next wet dress rehearsal attempt. Teams will work to secure the SLS rocket and Orion spacecraft and mobile launcher to ground support equipment at the launch pad and ensure that the rocket is in a safe configuration in preparation of the upcoming tanking test. Photo credit: NASA/Stephanie Plucinsky 2022年6月6日，NASA搭载猎户座航天器的太空发射系统（SLS）火箭离开位于佛罗里达州肯尼迪航天中心的机动发射器顶部的飞行器装配大楼。美国东部夏令时上午8点20分左右，NASA的阿尔忒弥斯一号月球火箭在经过8个小时的旅程后，抵达了航天港的39B发射中心，之后将进行下一次湿装彩排。各团队将努力确保SLS火箭、猎户座飞船和移动发射器与发射台的地面支持设备的安全，并确保火箭处于安全配置，为即将进行的油箱测试做准备。 图片来源：NASA/Stephanie Plucinsky

阿波罗1号纪念碑落成典礼

阿波罗1号纪念碑落成典礼

ByNASA中文

The Apollo 1 monument at Arlington National Cemetery was dedicated on Thursday, June 2, 2022, in Arlington, Va. The monument honors and memorializes the Apollo 1 crew of Virgil I. “Gus” Grissom, Edward H. White II, and Roger B. Chaffee. Family members of Apollo 1 astronaut Roger B. Chaffee were joined by NASA Administrator Bill Nelson as they placed flowers at the monument during its dedication. Image Credit: NASA/Bill Ingalls 2022年6月2日，星期四，阿灵顿国家公墓的阿波罗1号纪念碑在弗吉尼亚州阿灵顿举行了纪念仪式。该纪念碑纪念和纪念了维吉尔一世“古斯”格里松、爱德华H.怀特二世和罗杰B.查菲的阿波罗1号机组人员。 阿波罗1号宇航员罗杰·B·查菲的家人与美国宇航局局长比尔·纳尔逊一起在纪念碑献花。 图片来源：NASA/BillIngalls

围绕黑洞的巨大圆环

围绕黑洞的巨大圆环

ByNASA中文

This image features a spectacular set of rings around a black hole, captured using NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory. The X-ray images of the giant rings reveal information about dust located in our galaxy, using a similar principle to the X-rays performed in doctor’s offices and airports. The black hole is part of a binary system called V404 Cygni, located about 7,800 light years away from Earth. The black hole is actively pulling material away from a companion star — with about half the mass of the Sun — into a disk around the invisible object. This material glows in X-rays, so astronomers refer to these systems as “X-ray binaries.” Image Credit X-ray: NASA/CXC/U.Wisc-Madison/S. Heinz et al.; Optical/IR: Pan-STARR 这张图片展示了一组壮观的黑洞周围的光环，由NASA的钱德拉X射线天文台和尼尔·盖勒斯·斯威夫特天文台拍摄。巨大光环的X射线图像揭示了我们银河系中尘埃的信息，其原理与在医生办公室和机场进行的X射线相似。 该黑洞是一个称为V404…

2022年飓风季节开始

2022年飓风季节开始

ByNASA中文

Hurricanes are the most powerful weather event on Earth. The 2022 Atlantic hurricane season extends from June 1 to November 30. Faster than a cheetah, the fastest animal on land, hurricanes produce winds of 74 miles an hour (119 kilometers per hour) or more. In this image from 2021, the crew aboard the International Space Station snapped this image of Hurricane Sam as it churned in the Atlantic Ocean while the station orbited 259 miles above Trinidad and Tobago. Image Credit: NASA 飓风是地球上最强大的天气现象。2022年大西洋飓风季从6月1日持续到11月30日。 飓风的风速比陆地上最快的动物猎豹还要快，达到每小时74英里（每小时119公里）甚至更高。 在这张2021年的照片中，国际空间站的机组人员在特立尼达和多巴哥上空259英里的轨道上拍摄了飓风山姆在大西洋翻腾的照片。 图片来源：美国国家航空航天局