双子座的恒星形成

双子座的恒星形成

ByNASA中文

Nestled among the vast clouds of star-forming regions like this one lie potential clues about the formation of our own solar system. This image from the NASA/ESA Hubble Space Telescope features AFGL 5180, a beautiful stellar nursery located in the constellation of Gemini (the Twins). At the center of the image, a massive star is forming and blasting cavities through the clouds with a pair of powerful jets, extending to the top right and bottom left of the image. Light from this star is mostly escaping and reaching us by illuminating these cavities, like a lighthouse beacon piercing the storm clouds. Stars are born in dusty environments and although this dust makes for spectacular images, it can prevent astronomers from seeing stars embedded in it….

南极光照亮天空

南极光照亮天空

ByNASA中文

This image, taken from aboard the International Space Station, shows the aurora australis as it streams across the Earth’s atmosphere as the station orbited 271 miles above the southern Indian Ocean in between Asia and Antarctica. Named for the Roman goddess of dawn, the aurora is a captivating display of light in the night sky. The aurora borealis and aurora australis — also called the northern lights and southern lights — occur at the northern and southern poles. Image Credit: NASA 这张图片是在国际空间站上拍摄的，显示了极光在地球大气层中的流动，当时空间站在亚洲和南极洲之间的南印度洋上空271英里处运行。 极光以罗马的黎明女神命名，是夜空中迷人的光线显示。北极光和南极光出现在南极和北极。 图片来源：美国国家航空航天局

礁湖星云孕育恒星

礁湖星云孕育恒星

ByNASA中文

Known as NGC 6523 or the Lagoon Nebula, Messier 8 is a giant cloud of gas and dust where stars are born. At about 4,000 light years from Earth, Messier 8 provides astronomers an excellent opportunity to study the properties of very young stars. Many infant stars give off copious amounts of high-energy light including X-rays, which are seen in the Chandra data (pink). The X-ray data have been combined with an optical image of Messier 8 from the Mt. Lemmon Sky Center in Arizona (blue and white). Image Credit: X-ray: NASA/CXC/SAO; Optical: Adam Block/Mount Lemmon SkyCenter/University of Arizona 梅西耶8号被称为NGC 6523或礁湖星云，它是一个巨大的气体和尘埃云，恒星在这里诞生。在距离地球约4000光年的地方，梅西耶8号为天文学家提供了一个研究非常年轻的恒星特性的绝佳机会。许多新生恒星释放出大量的高能光，包括X射线，可以在钱德拉的数据中看到(粉色)。X射线数据与来自亚利桑那州莱蒙山天空中心的梅西耶8号的光学图像(蓝白两色)相结合。 影像来源：X射线: NASA/CXC/SAO; 可见光：Adam Block/Mount Lemmon SkyCenter/University of Arizona

看！英仙座流星雨

看！英仙座流星雨

ByNASA中文

In this 30-second exposure, a meteor streaks across the sky during the annual Perseid meteor shower, Wednesday, Aug. 11, 2021, as seen from Spruce Knob, West Virginia. Learn more about the annual Perseid meteor shower. Find out how you can see them in skies across North America! Image Credit: NASA/Bill Ingalls 在这张30秒的曝光照片中，2021年8月11日星期三，英仙座流星雨期间，一颗流星划过天空。照片摄于西弗吉尼亚州Spruce Knob。 了解更多关于每年的英仙座流星雨的信息。了解你如何在北美的天空中看到它们! 图片来源：NASA/Bill Ingalls

天鹅座货运飞船即将发射到空间站

天鹅座货运飞船即将发射到空间站

ByNASA中文

A Northrop Grumman Antares rocket carrying a Cygnus resupply spacecraft is seen in the vertical launch position on the Mid-Atlantic Regional Spaceport’s Pad 0A, Saturday, Aug. 7, 2021, at NASA’s Wallops Flight Facility in Virginia. Northrop Grumman’s 16th contracted cargo resupply mission with NASA to the International Space Station will deliver about 8,200 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. The CRS-16 Cygnus spacecraft is named in honor of American astronaut Ellison Onizuka, who was the first Asian American to fly in space. The rocket is slated to launch at 5:56 p.m. EDT, Aug. 10, 2021. Watch live on NASA TV. Image Credit: NASA/Terry Zaperach 2021年8月7日星期六，在NASA位于弗吉尼亚州的沃洛普斯飞行设施中，诺思罗普·格鲁曼公司的安塔瑞斯火箭携带天鹅座再补给飞船在中大西洋地区太空港的0A发射台处于垂直发射位置。诺斯罗普·格鲁曼公司与NASA签订的第16次国际空间站货物补给合同任务，将向轨道实验室及其工作人员运送约8200磅的科学和研究、船员用品和飞行器硬件。CRS-16天鹅座航天器是为了纪念美国宇航员埃里森·鬼冢而命名的，他是第一个在太空飞行的亚裔美国人。 该火箭定于2021年8月10日美国东部时间下午5点56分发射。在NASA电视上观看直播。 图片来源：NASA/Terry Zaperach

在国家图书爱好者日下载NASA电子书

在国家图书爱好者日下载NASA电子书

ByNASA中文

Happy #NationalBookLoversDay! NASA not only explores the universe, we also publish books on our discoveries! Learn about Hubble and other science discoveries, NASA history, aeronautics, engineering, and so much more. Find them all in our e-books archive. And so you know, we publish in all the most popular formats. Image Credit: NASA 祝#国家图书爱好者日 快乐! NASA不仅探索宇宙，我们还出版了关于我们的发现的书籍! 了解哈勃和其他科学发现、NASA的历史、航空学、工程学以及更多。在我们的电子书档案中找到它们。 而且你知道，我们以所有最流行的格式出版。 图片来源：美国国家航空航天局

朱诺号以木星卫星木卫三的全新视角来庆祝其发射10周年

朱诺号以木星卫星木卫三的全新视角来庆祝其发射10周年

ByNASA中文

This infrared view of Jupiter’s icy moon Ganymede was obtained by the Jovian Infrared Auroral Mapper (JIRAM) instrument aboard NASA’s Juno spacecraft during its July 20, 2021, flyby. JIRAM’s infrared instrument developed this image during recent flybys of Jupiter’s mammoth moon to create this latest map, which comes out a decade after Juno’s Aug. 5, 2011, launch. The Juno science team produced a new infrared map of Ganymede by combining data from three flybys, including its latest approach on July 20. These observations by JIRAM, which “sees” in infrared light not visible to the human eye, provide new information on Ganymede’s icy shell and the composition of the ocean of liquid water beneath. JIRAM was designed to capture the infrared light emerging from deep inside…

好奇号庆祝在火星上的又一年

好奇号庆祝在火星上的又一年

ByNASA中文

On Aug. 5, 2012, NASA’s Curiosity Mars rover landed safely on the Red Planet. In this self-portrait from 2018, Curiosity sits atop Vera Rubin Ridge, which the rover had been investigating. Directly behind the rover is the start of a clay-rich slope scientists are eager to begin exploring. In the coming week, Curiosity will begin to climb this slope. North is on the left and west is on the right, with Gale Crater’s rim on the horizon of both edges. Poking up just behind Curiosity’s mast is Mount Sharp, photobombing the robot’s selfie. Curiosity landed on Mars five years ago with the intention of studying lower Mount Sharp, where it will remain for all of its time on Mars. The mountain’s base provides access to…

菜单很重要

菜单很重要

ByNASA中文

An army marches on its stomach, the saying goes, and astronauts fly on theirs. The success of any mission relies on plentiful, nutritious, and enjoyable food. A growing body of research on the space station looks at ways to improve the food supply as missions increase in length. Station crew members continue to work on two current food-related investigations. This image was taken during plant harvest from the Veggie production facility for the Veg-04A experiment, part of a series of fresh food experiments that includes HRF Veg. That investigation uses psychological surveys and crew evaluations of the flavor and appeal of plants grown on the space station. Veg-04A will supplement astronauts’ diets with salad greens. Learn more. Image Credit: NASA 俗话说军队靠肚子行军，宇航员靠肚子飞。任何任务的成功都依赖于丰富、营养和美味的食物。随着任务时间的延长，空间站上越来越多的研究着眼于如何改善食物供应。空间站宇航员继续致力于目前两项与食物有关的调查。 这张照片是在Veggie生产设施的植物收获期间为Veg-04A实验所拍摄，该实验是包括HRF Veg在内的一系列新鲜食品实验的一部分。该调查使用心理调查和船员对空间站上种植的植物的味道和吸引力进行评估。Veg-04A将用蔬菜沙拉补充宇航员的饮食。 了解更多。 图片来源：美国国家航空航天局

照亮下一次发射

照亮下一次发射

ByNASA中文

A United Launch Alliance Atlas V rocket with NASA’s Starliner spacecraft aboard is illuminated by spotlights on Monday, Aug. 2, 2021, as it sits on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 mission at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA’s Commercial Crew Program. The mission, currently targeted for launch on 1:20 p.m. EDT Tuesday, Aug. 3, will serve as an end-to-end test of the system’s capabilities. Image Credit: NASA/Joel Kowsky 2021年8月2日星期一，在佛罗里达州卡纳维拉尔角空军基地进行轨道飞行测试-2任务之前，联合发射联盟的宇宙神Ⅴ号运载火箭搭载NASA的Starliner在太空发射场41号发射台上被聚光灯照亮。波音公司的轨道飞行测试-2将是星际客机的第二次无人驾驶飞行测试，并将与国际空间站对接，这是NASA商业宇航员计划的一部分。这项任务目前定于美国东部时间8月3日星期二下午1点20分发射，将作为对系统能力的端到端测试。 图片来源：NASA/Joel Kowsky