天鹅座太空货运飞船从加拿大2号机械臂上释放
图为国际空间站在西班牙马略卡岛附近的地中海上空262英里处绕轨道飞行时，诺斯罗普·格鲁曼公司的天鹅座太空货运飞船从加拿大手臂2号机械臂上释放后的瞬间。
庆祝地球日
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. The agency’s Earth Day exhibits are a free, public part of yearly celebrations; visitors can participate in hands-on activities and learn about the many ways NASA conducts Earth science. Image Credit: NASA/Keegan Barber 2023年4月20日，星期四，在华盛顿联合车站举行的地球日活动中，前NASA局长查理·博尔登与当地学生交谈。该机构的地球日展览是一个免费的、公共年度庆祝活动的一部分；参观者可以参与实践活动，了解NASA开展地球科学的多种方式。 图片来源: NASA/Keegan Barber
SuperBIT观测到碰撞的触须星系
This view of the Antennae Galaxies, two large galaxies colliding 60 million light-years away, is one of the first research images from the Super Pressure Balloon Imaging Telescope (SuperBIT) that launched on a scientific super pressure balloon April 16, 2023 (local time New Zealand). This image and one of the Tarantula Nebula were captured as the balloon-borne telescope floated at 108,000 feet (approximately 20.5 miles or 33 km) above Earth’s surface, allowing scientists to view these scientific targets from a balloon platform in a near-space environment. The SuperBIT telescope captures images of galaxies in the visible-to-near ultraviolet light spectrum, which is within the Hubble Space Telescope’s capabilities, but with a wider field of view. SuperBIT’s goal is to map dark matter around galaxy clusters by…
机智号的火星里程碑
This April 16, 2023, enhanced color image of NASA’s Ingenuity Mars Helicopter is the clearest view of the rotorcraft since its first flight. Ingenuity completed its 50th flight on April 13, 2023; the helicopter’s first flight on Mars was two years ago on April 19, 2021. This picture was taken by the Mastcam-Z instrument aboard the Perseverance rover. At the time the image was taken, the rover was about 75 feet (23 meters) away. Image Credit: NASA/JPL-Caltech/ASU/MSSS 这张摄于2023年4月16日的NASA机智号火星直升机增强彩色图像，是自该旋翼飞行器首次飞行以来最清晰的图像。机智号于2023年4月13日完成了第50次飞行；这架直升机首次在火星上飞行是在两年前的2021年4月19日。 这张照片是由毅力号火星车上的Mastcam-Z仪器拍摄。在拍摄这张照片的时候，探测器离它大约75英尺（23米）远。 影像来源：NASA/JPL-Caltech/ASU/MSSS
尼泊尔的喜马拉雅山和珠穆朗玛峰
Clouds gather over Nepal near Mount Everest (center) in this April 13, 2023, photograph from the International Space Station. This image was taken as the station orbited 263 miles above the Indian subcontinent. In addition to photography, instruments on the space station like the Compact Ocean Wind Vector Radiometer and the Temporal Experiment for Storms and Tropical Systems allow us to monitor weather and collect important data. Image Credit: NASA 2023年4月13日，国际空间站拍摄的照片中，尼泊尔珠穆朗玛峰（中）附近的云层聚集在一起。这张照片是空间站在印度次大陆上空263英里的轨道上拍摄。 除了摄影之外，空间站上的仪器，如紧凑型海洋风矢量辐射计和风暴和热带系统时间实验，使我们能够监测天气并收集重要数据。 影像来源：NASA
秃鹰降落在肯尼迪航天中心
2023年4月10日，NASA肯尼迪航天中心，一只美国秃鹰俯冲降落在一根杆子上。这只鹰是在筑巢季节在佛罗里达太空港定居的一对伴侣中的一员。今年，这对夫妇在肯尼迪公园路附近的一棵树上饲养了一只孤独的幼鹰，该巢穴距离车辆装配大楼约两英里。肯尼迪目前是大约20对筑巢的秃鹰的家园。
哈勃望远镜发现一个有卷须的星系
This image taken with the NASA/ESA Hubble Space Telescope shows JO204, a ‘jellyfish galaxy’ so named for the bright tendrils of gas that appear in this image as drifting lazily below JO204’s bright central bulk. The galaxy lies almost 600 million light-years away in the constellation Sextans. Hubble observed JO204 as part of a survey performed with the intention of better understanding star formation under extreme conditions. While the delicate ribbons of gas beneath JO204 may look like floating jellyfish tentacles, they are in fact the outcome of an intense astronomical process known as ram pressure stripping. Ram pressure is a particular type of pressure exerted on a body when it moves relative to a fluid. An intuitive example is the sensation of pressure you…
暴雨和大雪使图莱里湖恢复生机
Floodwater (dark blue) stands out against the vegetation in agricultural fields around Tulare Lake near Corcoran, California, in this enhanced color image taken by Landsat 8 on March 29, 2023. Heavy rain and snow in the first three months of 2023 have once again brought water to Tulare’s lakebed, but also flooding several nearby towns. 2023 has been the wettest year in the region’s history. Tulare Lake, in California’s San Joaquin Valley, was once the largest freshwater lake west of the Mississippi River. By 1920, the rivers that fed the lake were dammed and diverted for uses such as irrigation. Since then, the lakebed has been covered with farms that grow a variety of crops. See what the region looked like in March 2022. Image…
在白宫复活节滚彩蛋活动上庆祝科学
Former NASA astronaut Alvin Drew shakes hands with a guest during the White House Easter Egg Roll in this photo from Monday, April 10, 2023. The agency also brought spacewalk suits for children to see and try on, shared images of space, and conducted an egg drop experiment. Embracing the event’s “EGGucation” theme, NASA’s STEM activities even took place in space: Astronaut Woody Hoburg used a souvenir White House egg to teach children about gravity; the video was shared during the event. See more photos from the Easter Egg Roll. Image Credit: NASA/Keegan Barber 2023年4月10日周一，NASA前宇航员阿尔文·德鲁在白宫复活节滚彩蛋活动中与一位访客握手。该机构还为儿童带来了太空行走服供他们观看和试穿，分享了太空图像，并进行了一次鸡蛋掉落实验。 NASA的STEM活动以“蛋教育”为主题，甚至在太空中进行：宇航员伍迪·霍伯格用一个白宫纪念蛋教孩子们重力；视频在活动期间被分享。 为了迎接这次活动的“鸡蛋教育”主题，NASA的STEM活动甚至在太空中进行：宇航员伍迪·霍伯格用一个纪念白宫的鸡蛋来教孩子们关于重力的知识；在活动期间视频可分享。 查看更多来自复活节滚彩蛋活动的照片。 影像来源：NASA/Keegan Barber
X-59有了尾翼
NASA’s X-59 sits in support framing while undergoing the installation of its lower empennage, or tail section, at Lockheed Martin Skunk Works in Palmdale, California, in this image from late March 2023. Once complete, the X-59 aircraft—the centerpiece of NASA’s Quesst mission—is designed to demonstrate the ability to fly supersonic while reducing the loud sonic boom to a quiet sonic thump. The Quesst mission will then fly the X-59 over several U.S. communities to gather data on human responses to the sound generated during supersonic flight and deliver that data set to U.S. and international regulators. Image Credit: Lockheed Martin 在这张2023年3月下旬拍摄的照片中，NASA的X-59在位于加利福尼亚州帕姆代尔的洛克希德·马丁臭鼬工厂的支撑架上安装其下尾翼。 X-59飞机是NASA Quesst任务的核心，一旦完工，它将展示超音速飞行的能力，同时将巨大的音爆减少为安静的音爆。随后，Quesst任务将驾驶X-59飞越美国多个社区，收集人类对超音速飞行期间产生的声音的反应数据，并将数据集提交给美国和国际监管机构。 影像来源：Lockheed Martin