空间站工作人员拍摄了一张萨斯奎哈纳河的照片

空间站工作人员拍摄了一张萨斯奎哈纳河的照片

ByNASA中文

The Susquehanna River cuts through the folds of the Valley-and-Ridge province of the Appalachian Mountains in this photograph taken by the crew of the International Space Station. The Valley-and-Ridge province is a section of the larger Appalachian Mountain Belt between the Appalachian Plateau and the Blue Ridge physiographic provinces. The northeast-southwest trending ridges are composed of Early Paleozoic sedimentary rocks. The valleys between them were made of softer rocks (limestone and shales) that were more susceptible to erosion; they are now occupied by farms. The Susquehanna River cuts through several ridges as it flows south. The Susquehanna River flows 444 mi (714 kilometers) from upstate New York to Maryland, draining into Chesapeake Bay. Learn more about this image. Fifty years ago, on April 22, 1970,…

马达加斯加的庞贝托卡湾，看起来像是另一个世界

马达加斯加的庞贝托卡湾，看起来像是另一个世界

ByNASA中文

On the northwestern coast of Madagascar, the salty waters of the Mozambique Channel penetrate inland to join with the freshwater outflow of the Betsiboka River, forming Bombetoka Bay. Numerous islands and sandbars have formed in the estuary from the large amount of sediment carried in by the Betsiboka River and have been shaped by the flow of the river and the push and pull of tides. Learn more about Bombetoka Bay, Madagascar. Fifty years ago, on April 22, 1970, people around the world marked the first Earth Day. On this Earth Day, as we physically separate ourselves by necessity, we can still collectively appreciate the wondrous beauty of our planet and the extraordinary science that helps us understand how it all works – and we…

黑色大理石:我们的星球在璀璨的黑暗中

黑色大理石:我们的星球在璀璨的黑暗中

ByNASA中文

In the years since the 2011 launch of the NASA-NOAA Suomi National Polar-orbiting Partnership (NPP) satellite, a research team at the agency’s Goddard Space Flight Center has been analyzing night-lights data and developing new software and algorithms to make night lights imagery clearer, more accurate and readily available. This is one of several global images released in 2017. Learn more about this image. Fifty years ago, on April 22, 1970, people around the world marked the first Earth Day. On this Earth Day, as we physically separate ourselves by necessity, we can still collectively appreciate the wondrous beauty of our planet and the extraordinary science that helps us understand how it all works – and we can do it from our homes. Follow along this…

红外线下的墨西哥湾流

红外线下的墨西哥湾流

ByNASA中文

Stretching from tropical Florida to the doorstep of Europe, the Gulf Stream carries a lot of heat, salt and history. This river of water is an important part of the global ocean conveyor belt, moving water and heat from the Equator toward the far North Atlantic. It is one of the strongest currents on Earth and one of the most studied. Its discovery is often attributed to Benjamin Franklin, though sailors likely knew about the current long before they had a name for it. This image shows a small portion of the Gulf Stream off of South Carolina as it appeared in infrared data collected by the Landsat 8 satellite in April 2013. Colors represent the energy—heat—being emitted by the water, with cooler temperatures in…

蓝色大理石:阿波罗17号上的风景

蓝色大理石:阿波罗17号上的风景

ByNASA中文

Fifty years ago, on April 22, 1970, people around the globe marked the first Earth Day. On this Earth Day, as we physically separate ourselves by necessity, we can still collectively appreciate the wondrous beauty of our planet and the extraordinary science that helps us understand how it all works – and we can do it from our homes. This classic photograph of the Earth was taken on Dec. 7, 1972, by the crew of Apollo 17. The original caption is reprinted below: View of the Earth as seen by the Apollo 17 crew traveling toward the moon. This translunar coast photograph extends from the Mediterranean Sea area to the Antarctica south polar ice cap. This is the first time the Apollo trajectory made it…

杰西卡·梅尔和她的同伴安全地从空间站返回

杰西卡·梅尔和她的同伴安全地从空间站返回

ByNASA中文

NASA astronaut Jessica Meir gives a thumbs up after she, Roscosmos cosmonaut Oleg Skripochka and NASA astronaut Andrew Morgan landed in their Soyuz MS-15 spacecraft in a remote area near the town of Zhezkazgan, Kazakhstan on Friday, April 17, 2020. Meir and Skripochka returned after 205 days in space, and Morgan after 272 days in space. All three served as Expedition 60-61-62 crew members onboard the International Space Station. Image Credit: NASA/GCTC/Andrey Shelepin 2020年4月17日星期五，美国国家航空航天局宇航员杰西卡·梅尔、俄罗斯宇航员奥列格·斯克里波奇卡和美国国家航空航天局宇航员安德鲁·摩根乘坐联盟号MS-15宇宙飞船在哈萨克斯坦哲兹卡兹甘镇附近的一个偏远地区着陆后，竖起了大拇指。梅尔和斯克里波奇卡在太空飞行205天后返回，摩根在太空飞行272天后返回。这三人都是国际空间站上的第61、62、63号远征队的机组人员。 图片来源：NASA/GCTC/Andrey Shelepin

开普勒-1649c:地球大小，宜居带行星隐藏在显而易见的地方

开普勒-1649c:地球大小，宜居带行星隐藏在显而易见的地方

ByNASA中文

A team of transatlantic scientists, using reanalyzed data from NASA’s Kepler space telescope, has discovered an Earth-size exoplanet orbiting in its star’s habitable zone, the area around a star where a rocky planet could support liquid water. Scientists discovered this planet, called Kepler-1649c, when looking through old observations from Kepler, which the agency retired in 2018. While previous searches with a computer algorithm misidentified it, researchers reviewing Kepler data took a second look at the signature and recognized it as a planet. Out of all the exoplanets found by Kepler, this distant world – located 300 light-years from Earth – is most similar to Earth in size and estimated temperature. This artist’s illustration shows what Kepler-1649c could look like from its surface. Learn more at…

NASA的验光师检验“毅力号”火星车的20/20视力

NASA的验光师检验“毅力号”火星车的20/20视力

ByNASA中文

Equipped with visionary science instruments, the Mars Perseverance rover underwent an “eye” exam after several cameras were installed. The rover contains an armada of imaging capabilities, from wide-angle landscape cameras to narrow-angle high-resolution zoom lens cameras. This image, taken in the Spacecraft Assembly Facility’s High Bay 1 at the Jet Propulsion Laboratory in Pasadena, California, on July 23, 2019, shows a close-up of the head of the rover’s remote sensing mast. The mast head contains the SuperCam instrument. (Its lens is in the large circular opening.) In the gray boxes beneath mast head are the two Mastcam-Z imagers. On the exterior sides of those imagers are the rover’s two navigation cameras. Find out more on the rover with JPL’s Learn Space. Image Credit: NASA/JPL-Caltech 毅力号火星车在安装了多个摄像头，配备有远见的科学仪器，进行了视力检查。从广角全景相机到窄角高分辨率变焦镜头相机，毅力号火星车拥有强大的成像能力。…

想象月球表面的阿波罗13号

想象月球表面的阿波罗13号

ByNASA中文

Apollo 13 launched on April 11, 1970, on a journey to become the third crew to land on the Moon. The crew never made it. The mission became known as “a successful failure” that saw the safe return of its crew in spite of a catastrophic explosion. This artist’s concept—by Teledyne Ryan Aeronautical, San Diego, California—shows two Apollo 13 astronauts exploring the surface of the Moon. In the center background is the Apollo 13 Lunar Module in the rugged highlands just north of Fra Mauro. Fifty years later, NASA is sharing a variety of resources, recognizing the triumph of the mission control team and the astronauts and looking at how those lessons can be applied to the Artemis program. Image Credit: NASA 1970年4月11日，阿波罗13号发射升空，成为第三批登上月球的宇航员。船员们没能成功。这次任务被称为“一次成功的失败”，尽管发生了灾难性的爆炸，机组人员仍然安全返回。 这幅艺术家的概念图——由来自加利福尼亚圣地亚哥的T特莱丁瑞安航空公司绘制——展示了两名阿波罗13号宇航员探索月球表面的情景。在中间的背景是阿波罗13号登月舱在崎岖的高地就在弗拉毛罗北部。 五十年后，NASA共享各种资源，认识到任务控制团队和宇航员的成功，并研究如何将这些经验应用到阿尔忒弥斯项目中。…

将下一批宇航员发送到空间站

将下一批宇航员发送到空间站

ByNASA中文

The Soyuz MS-16 lifts off from Site 31 at the Baikonur Cosmodrome in Kazakhstan on Thursday, April 9, 2020, sending Expedition 63 crewmembers Chris Cassidy of NASA and Anatoly Ivanishin and Ivan Vagner of Roscosmos into orbit for a six-hour flight to the International Space Station and the start of a six-and-a-half month mission. Image Credit: NASA/GCTC/Andrey Shelepin 2020年4月9日星期四，联盟号MS-16从哈萨克斯坦拜科努尔航天发射场31号发射升空，将第63号远征队成员——NASA的克里斯·卡西迪(Chris Cassidy)、俄罗斯宇航局(Roscosmos)的阿纳托利·伊瓦尼辛(Anatoly Ivanishin)和伊万·瓦格纳(Ivan Vagner)送入轨道，进行前往国际空间站的六小时飞行，并开始为期六个半月的任务。 图片来源:NASA/GCTC/Andrey Shelepin