每日一图 | Page 56 of 97

NASA X-59发动机进气口的视图

ByNASA中文 2021年5月14日2021年5月14日

NASA’s X-59 requires the use of creative and strategic supersonic technologies to control and soften the jarring sound that hits the ground as the aircraft flies faster than the speed of sound. One of these creative technologies is the placement of the X-59 engine inlet. This visual is a closeup looking downstream inside of the X-59’s engine inlet where, later in the assembly process, the 13-foot GE F414 engine will be placed. The main purpose of the engine inlet is to condition or smooth out and slow down the air before it actually gets to the engine. Before the X-59 engine is installed, there will be pressure measurement sensors mounted to the inlet walls to help the team monitor the inlet air flow and flight…

NASA·每日一图

系统工程师艾伦·陈

ByNASA中文 2021年5月13日2021年5月13日

Perseverance entry, descent, and landing lead Allen Chen gives remarks during a NASA Perseverance rover mission landing update Feb. 17, 2021, at NASA’s Jet Propulsion Laboratory. The Perseverance Mars rover landed on Mars Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will be the first mission to collect, store, and return to Earth Martian rocks and surface materials, which will help researchers characterize the planet’s geology and past climate and ultimately pave the way for human exploration of the Red Planet. #AAPI #AsianAmericanPacificIslanderHeritageMonth Image Credit: NASA/Bill Ingalls [rml_read_more] 2021年2月17日，毅力号火星车在NASA喷气推进实验室着陆更新期间，艾伦·陈发表讲话。毅力号火星车于2021年2月18日登陆火星。毅力号火星任务的一个关键目标是天体生物学，包括寻找古代微生物生命的迹象。毅力号火星车将是首个收集、储存并返回地球的火星岩石和表面材料的任务，这将有助于研究人员描述火星的地质和过去的气候，并最终为人类探索这颗红色星球铺平道路。 #AAPI #AsianAmericanPacificIslanderHeritageMonth 图片来源:NASA/Bill Ingalls

NASA·每日一图

OSIRIS-REx告别小行星贝努

ByNASA中文 2021年5月12日2021年5月12日

On April 9, 2021, NASA’s Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft took one last look at Bennu, the asteroid from which it scooped up a sample last October. Slated for return to Earth in 2023, the mission is on track to deliver a sample of pristine material left over from the formation of our solar system into the hands of researchers on Earth. This image, the last one taken by the spacecraft, shows crescent Bennu with its night side merging with the complete black of space as the spacecraft pushed away from Bennu. For two years, OSIRIS-REx studied the asteroid, revealing the many secrets of this ancient body and delivering clues about its rubble-pile-like consistency and surface terrain, which turned out…

NASA·每日一图

观察早期宇宙中的恒星

ByNASA中文 2021年5月11日2021年5月11日

This June 2020 image from the Hubble Space Telescope shows the galaxy cluster MACS J0416. This is one of six galaxy clusters being studied by the Hubble Frontier Fields program, which produced the deepest images of gravitational lensing ever made. Scientists used intracluster light (visible in blue) to study the distribution of dark matter within the cluster. Image Credit: NASA, ESA and M. Montes (University of New South Wales) [rml_read_more] 这张哈勃太空望远镜在2020年6月拍摄的图像显示了星系星团MACS J0416。这是哈勃边疆场计划正在研究的六个星系团之一，该项目产生了迄今为止最深刻的引力透镜图像。科学家们星系内的光（蓝色可见）研究了星系内暗物质的分布。图片提供：NASA，ESA和M.Montes（新南威尔士大学）

NASA·每日一图

哈勃凝视着充满宇宙线索的星团

ByNASA中文 2021年5月8日2021年5月8日

This detailed image features Abell 3827, a galaxy cluster that offers a wealth of exciting possibilities for study. Hubble observed it in order to study dark matter, which is one of the greatest puzzles cosmologists face today. The science team used Hubble’s Advanced Camera for Surveys and Wide Field Camera 3 to complete their observations. The two cameras have different specifications and can observe different parts of the electromagnetic spectrum, so using them both allowed the astronomers to collect more complete information. Hubble also observed Abell 3827 previously because of the interesting gravitational lens at its core. Looking at this cluster of hundreds of galaxies, it is amazing to recall that less than 100 years ago, many astronomers thought the Milky Way was the only…

NASA·每日一图

嗨，瑞奇：这周是教师感谢周！

ByNASA中文 2021年5月7日2021年5月7日

Astronaut Ricky Arnold is shown on his first spacewalk as a crewmember on STS-119. Before he joined the Astronaut Corps, Arnold was a teacher in classrooms all over the world, from Malaysia to Romania. Arnold also served aboard the International Space Station on Expedition 55/56. In this image, during the six-hour, seven-minute spacewalk, Arnold and fellow astronaut Steve Swanson (out of frame) connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays. The blackness of space and Earth’s horizon provide the backdrop for the scene. Video –…

NASA·每日一图

肯尼迪总统授予艾伦·谢泼德美国航空航天局杰出服务勋章

ByNASA中文 2021年5月6日2021年5月6日

On May 5, 1961, Alan Shepard – one of NASA’s first seven astronauts – became the first American in space. In this image, President John F. Kennedy, right, awards NASA’s Distinguished Service Medal to astronaut Shepard in a Rose Garden ceremony on May 8, 1961, at the White House. In the background are the other members of the Mercury Seven, NASA’s original astronauts. Shepard’s Freedom 7 Mercury capsule flew a suborbital trajectory lasting 15 minutes 22 seconds. His spacecraft landed in the Atlantic Ocean where he and his capsule were recovered by helicopter and transported to the awaiting aircraft carrier U.S.S. Lake Champlain. View the Alan Shepard image gallery. Image Credit: NASA 1961年5月5日NASA首批七名宇航员之一的艾伦·谢泼德成为第一个进入太空的美国人。在这张照片中，总统约翰·F·肯尼迪(右)在1961年5月8日的白宫玫瑰园仪式上向宇航员谢博德颁发NASA的杰出服务奖章。背景是水星7号的其他成员，这是NASA最初的宇航员。谢泼德的自由7号水星太空舱沿亚轨道飞行了15分22秒。他的宇宙飞船降落在大西洋上，他和他的太空舱在那里被直升机回收，并被运到等待的美国桑普兰湖号航空母舰上。查看艾伦·谢泼德图片库。图片来源：NASA

NASA·每日一图

发现环双星系统

ByNASA中文 2021年5月5日2021年5月5日

May the Fourth Be With You! When the first Star Wars movie was released in 1977, it featured the now-iconic two-sun, “circumbinary” planet Tatooine. At that time astronomers didn’t really know if such solar systems existed. Indeed, the first extra-solar planet wasn’t detected until the early 1990s. And, the first actual circumbinary planet was detected in 2005, and it was a Jupiter-size planet orbiting a system composed of a sun-like star and a brown dwarf. Fast forward a few decades and researchers working with data from the Transiting Exoplanet Survey Satellite (TESS) discovered the mission’s first circumbinary planet, a world orbiting two stars, as shown in this image from January 2020. The planet, called TOI 1338 b, is around 6.9 times larger than Earth, or…

NASA·每日一图

毅力号火星车任务指导、导航和控制操作负责人斯瓦蒂·莫汉

ByNASA中文 2021年5月4日2021年5月4日

Perseverance Mars rover mission commentator and guidance, navigation, and controls operations Lead Swati Mohan studies data on monitors in mission control, Thursday, Feb. 18, 2021, at NASA’s Jet Propulsion Laboratory in Pasadena, California. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. #AAPI #AsianAmericanPacificIslanderHeritageMonth Image Credit: NASA/Bill Ingalls 2021年2月18日，星期四，在加利福尼亚州帕萨迪纳的美国宇航局喷气推进实验室里，斯瓦蒂·莫汉研究任务控制中心监测器上的数据。毅力号火星任务的一个关键目标是天体生物学，包括寻找古代微生物生命的迹象。毅力号将描绘火星的地质特征和过去的气候，为人类探索火星铺平道路，并成为第一个收集和储存火星岩石和风化层的任务。 #AAPI #AsianAmericanPacificIslanderHeritageMonth 图片来源:NASA/Bill Ingalls

NASA·每日一图

哈勃望远镜观测到一条耀眼的宇宙项链

ByNASA中文 2021年5月3日2021年5月3日

The interaction of two doomed stars has created this spectacular ring adorned with bright clumps of gas – a diamond necklace of cosmic proportions. Fittingly known as the “Necklace Nebula,” this planetary nebula is located 15,000 light-years away from Earth in the small, dim constellation of Sagitta (the Arrow). A pair of tightly orbiting Sun-like stars produced the Necklace Nebula, which also goes by the less glamorous name of PN G054.203.4. Roughly 10,000 years ago, one of the aging stars expanded and engulfed its smaller companion, creating something astronomers call a “common envelope.” The smaller star continued to orbit inside its larger companion, increasing the bloated giant’s rotation rate until large parts of it spun outwards into space. This escaping ring of debris formed the…