每日一图 | Page 7 of 97

轨道日落的最后一缕光线

ByNASA中文 2023年7月7日

The last rays of an orbital sunset begin fading in Earth’s atmosphere silhouetting the cloud tops in this June 24, 2023, photograph from the International Space Station as it orbited 271 miles above the southernmost tip of South America. The space station makes 16 orbits of the Earth in 24 hours, so astronauts on the orbital outpost see 16 sunrises and sunsets. Get more quick facts about the International Space Station. Image Credit: NASA 2023年6月24日，国际空间站在南美洲最南端上空271英里的轨道上拍摄的这张照片显示，轨道日落的最后一道光线开始在地球大气层中消退，勾勒出云顶的轮廓。国际空间站在24小时内绕地球运行16圈，因此空间站上的宇航员可以看到16次日出和日落。了解更多关于国际空间站的快速事实。影像来源：NASA

NASA·每日一图

NASA的X-59迈出了关键一步

ByNASA中文 2023年7月6日

NASA’s X-59 research aircraft moves from its construction site to the flight line – or the space between the hangar and the runway – at Lockheed Martin Skunk Works in Palmdale, California, on June 16, 2023. This milestone kicks off a series of ground tests to ensure the X-59 is safe and ready to fly. The X-59 is designed to fly faster than Mach 1 while reducing the resulting sonic boom to a thump for people on the ground. NASA will evaluate this technology during flight tests as part of the agency’s Quesst mission, which helps enable commercial supersonic air travel over land. Text Credit: Amiee Lomax Image Credit: Lockheed Martin 2023年6月16日，在加州帕姆代尔的洛克希德·马丁臭鼬工厂，NASA的X-59研究飞机从施工现场转移到飞行线上，或者说是机库和跑道之间的空间。这一里程碑开启了一系列地面测试，以确保X-59安全并准备好飞行。 X-59的设计飞行速度超过1马赫，同时将由此产生的音爆降低到对地面上的人来说砰砰作响的程度。NASA将在飞行测试中评估这项技术，作为该机构Quesst任务的一部分，该任务有助于实现商业超音速空中旅行。文稿来源：Amiee Lomax 影像来源：Lockheed Martin

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一轮满月照亮阿尔忒弥斯一号

ByNASA中文 2023年7月4日

A full moon was visible behind the Artemis I SLS (Space Launch System) rocket and Orion spacecraft at Launch Complex 39B at NASA’s Kennedy Space Center in Florida on June 14, 2022. The first in an increasingly complex series of missions, Artemis I tested SLS and Orion as an integrated system prior to crewed flights to the Moon. Learn more about observing the Moon with NASA’s interactive Daily Moon Guide. Image Credit: NASA / Ben Smegelsky 2022年6月14日，在NASA位于佛罗里达州肯尼迪航天中心的39B发射中心，一轮满月出现在阿尔忒弥斯一号SLS（太空发射系统）火箭和猎户座飞船后面。作为日益复杂的系列任务中的第一项，阿尔忒弥斯一号在载人登月之前测试了SLS和猎户座的集成系统。通过NASA的交互式每日月球指南了解更多关于观测月球的信息。图片来源: NASA / Ben Smegelsky

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哈勃观测到星系邻居

ByNASA中文 2023年7月2日

The highly irregular galaxy ESO 174-1, which resembles a lonely, hazy cloud against a backdrop of bright stars, dominates this image from the NASA/ESA Hubble Space Telescope. ESO 174-1 lies around 11 million light-years from Earth and consists of a bright cloud of stars and a faint, meandering tendril of dark gas and dust. This image is part of a collection of Hubble observations designed to better understand our nearby galactic neighbors. The observations aim to resolve the brightest stars and basic properties of every known galaxy within 10 megaparsecs. A parsec is a unit used by astronomers to measure the vast distances to other galaxies – 10 megaparsecs translates to 32 million light-years – and makes astronomical distances easier to handle. For example, the…

NASA·每日一图

阿尔忒弥斯二号任务隔热罩安装完毕

ByNASA中文 2023年6月30日

Teams install the heat shield on the Artemis II Orion spacecraft at NASA’s Kennedy Space Center in Florida on June 22, 2023. The 16.5-foot-wide shield will ensure the safe return of the astronauts on board as the spacecraft travels at speeds of about 25,000 miles per hour and experiences outside temperatures of nearly 5,000 degrees Fahrenheit. See progress on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence at the Moon for science and exploration. Image Credit: NASA/Cory Huston 2023年6月22日，在NASA位于佛罗里达州的肯尼迪航天中心，团队正在为阿尔忒弥斯二号任务猎户座飞船安装隔热罩。当飞船以每小时2.5万英里的速度飞行，并经历近5,000华氏度的外部温度时，16.5英尺宽的隔热罩将确保宇航员安全返回。查看阿尔忒弥斯二号任务的进展，这是NASA在月球上建立长期科学和探索的第一个载人任务。影像来源：NASA/Cory Huston

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迎接挑战：NASA TechRise学生团队开始飞行

ByNASA中文 2023年6月29日

Aerostar’s high-altitude balloon is shown here moments after launch carrying payloads from 20 student teams as part of NASA’s TechRise Student Challenge. Credits: Fresh Produce Students from 20 middle and high schools watched as their experiments launched aboard a high-altitude balloon on June 14 as part of NASA’s TechRise Student Challenge. The flight is part of a series of suborbital flight tests for TechRise that will continue through the summer. Led by NASA’s Flight Opportunities program and administered by Future Engineers, TechRise gives student teams a chance to design and build science and technology experiments for flight. “Flight test is a critical milestone along the path of technology development and scientific discovery, and is essential for tackling some of the most pressing challenges NASA faces.”…

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在肯尼迪航天中心晒太阳

ByNASA中文 2023年6月28日

A young alligator rests on a concrete structure at NASA’s Kennedy Space Center in Florida on April 25, 2023. Alligator breeding season starts in May when males begin courting females. By June, pairs have mated, and females build vegetation nests in the marsh. Eggs hatch in about 65 days. The mother carries her young to the water and protects them from predators, including male alligators. The center shares a border with the Merritt Island National Wildlife Refuge. More than 330 native and migratory bird species, 25 mammal, 117 fish, and 65 amphibian and reptile species call Kennedy and the wildlife refuge home. Learn more about alligators. Image credit: NASA/Ben Smegelsky 2023年4月25日，一只年轻的短吻鳄在佛罗里达州NASA肯尼迪航天中心的混凝土结构上休息。短吻鳄繁殖季节从五月开始，这时雄性开始向雌性求爱。到了6月，雌雄交配，雌性鳄鱼在沼泽里筑巢。鳄鱼卵大约65天后孵化。母鳄带着幼鳄来到水边，保护它们免受捕食者的伤害，包括雄性短吻鳄。肯尼迪航天中心与梅里特岛国家野生动物保护区接壤。超过330种本地和候鸟，25种哺乳动物，117种鱼类，65种两栖动物和爬行动物将肯尼迪和野生动物保护区称为家。了解更多关于短吻鳄的知识。图片来源: NASA/Ben Smegelsky

NASA·每日一图

以新的方式探索气候数据

ByNASA中文 2023年6月27日

Local students take in the sights—and data—at an Earth Information Center student engagement event, Friday, June 23, 2023, at NASA Headquarters in Washington. The Earth Information Center is a new immersive experience that combines live data sets with innovative data visualization and storytelling to show visitors how our planet is changing. The center gives a whole Earth view down to local information, from temperatures in our cities to sea level rise, greenhouse gas emissions to agricultural productivity. Visit this hybrid exhibit in person at NASA Headquarters in Washington or online. Take a virtual tour of the Earth Information Center. Image Credit: NASA/Keegan Barber 2023年6月23日星期五，在华盛顿的NASA总部，当地学生在地球信息中心的学生参与活动中观看景观和数据。地球信息中心是一种全新的沉浸式体验，它将实时数据集与创新的数据可视化和讲故事相结合，向游客展示我们的星球是如何的变化。该中心提供了从城市温度到海平面上升、从温室气体排放到农业生产力的全地球视角和本地信息。亲自到华盛顿的NASA总部或在网上参观这个混合展览。来一次虚拟的地球信息中心之旅吧。图片来源：NASA/Keegan Barber

NASA·每日一图

哈勃望远镜瞥见一个闪烁的星团

ByNASA中文 2023年6月24日

The teeming stars of the globular cluster NGC 6544 glisten in this image from the NASA/ESA Hubble Space Telescope. This cluster of tightly bound stars lies more than 8,000 light-years away from Earth and is, like all globular clusters, a densely populated region of tens of thousands of stars. This image of NGC 6544 combines data from two of Hubble’s instruments, the Advanced Camera for Surveys and Wide Field Camera 3, as well as two separate astronomical observations. The first observation was designed to find a visible counterpart to the radio pulsar discovered in NGC 6544. A pulsar is the rapidly spinning remnant of a dead star, emitting twin beams of electromagnetic radiation like a vast astronomical lighthouse. This pulsar rotates particularly quickly, and astronomers…

NASA·每日一图

天空实验室2号的最后一瞥

ByNASA中文 2023年6月23日

During the Skylab 2 crew’s final fly-around inspection on June 22, 1973, they saw this overhead view of the Skylab space station. It has a single solar panel and a parasol solar shield, rigged to replace the micrometeoroid shield. A mishap in the original Skylab 1 liftoff and orbital insertion resulted in damage: both the second solar panel and the micrometeoroid shield were torn away. When commander Charles “Pete” Conrad, pilot Paul J. Weitz, and science pilot Joseph P. Kerwin launched to the Skylab space station, the first part of their mission was to make repairs to the station, resulting in a record-breaking spacewalk. In the second half of their mission, Conrad, Weitz, and Kerwin focused on completing as much science as possible, research being…