土星的春天

土星的春天

ByNASA中文

Spring doesn’t just hapen on Earth. Spring also happens on some of our neighboring planets in the solar system. Of the countless equinoxes Saturn has seen since the birth of the solar system, this one, captured here in a mosaic of light and dark, is the first witnessed up close by an emissary from Earth … none other than our faithful robotic explorer, Cassini in this image from 2009. Seen from our planet, the view of Saturn’s rings during equinox is extremely foreshortened and limited. But in orbit around Saturn, Cassini had no such problems. From 20 degrees above the ring plane, Cassini’s wide angle camera shot 75 exposures in succession for this mosaic showing Saturn, its rings, and a few of its moons a…

1978年3月18日：企业号航天飞机抵达进行振动测试

1978年3月18日：企业号航天飞机抵达进行振动测试

ByNASA中文

On March 18, 1978, space shuttle Enterprise arrived at NASA’s Marshall Space Flight Center for mated vertical ground vibration testing, which marked the first time the entire shuttle compliment – orbiter, external tank, and solid rocket boosters – were mated vertically. Here, Enterprise is offloaded at Redstone Arsenal Airfield before being moved to Marshall’s Dynamic Test Stand. Today, Marshall is playing a vital role in the Artemis program by developing the Space Launch System, the backbone of NASA’s exploration plans and the only rocket capable of sending humans to the Moon and Mars. #TBT Image Credit: NASA 1978年3月18日，企业号航天飞机抵达美国国家航空航天局马歇尔航天飞行中心，进行地面垂直振动测试，这标志着航天飞机的全部设备——轨道飞行器、外部燃料箱和固体火箭助推器——首次实现垂直对接。在这里，企业号在红石军火库机场卸下飞机然后被转移到马歇尔的动态试验台。今天，马歇尔通过开发太空发射系统在阿耳忒弥斯计划中发挥着至关重要的作用。太空发射系统是美国宇航局探索计划的支柱，也是唯一能够将人类送上月球和火星的火箭。 #TBT 图片来源:美国国家航空航天局

火星上的机智号直升机（模拟图）

火星上的机智号直升机（模拟图）

ByNASA中文

An illustration of NASA’s Ingenuity Helicopter flying on Mars. Ingenuity, a technology demonstration experiment, will be the first aircraft to attempt powered, controlled flight on another planet. Ingenuity arrived at Mars on Feb. 18, 2021, attached to the belly of NASA’s Mars 2020 Perseverance rover. Ingenuity is expected to attempt its first flight test in spring 2021. NASA’s Jet Propulsion Laboratory built and manages operations of Perseverance and Ingenuity for the agency. Caltech in Pasadena, California, manages JPL for NASA. For more information about Ingenuity, go to: mars.nasa.gov/technology/helicopter. Credit: NASA/JPL-Caltech 这是NASA机智号直升机在火星上飞行的模拟图片。 机智号，一项技术演示实验，将成为第一架尝试在另一个星球上进行动力控制飞行的飞机。机智号于2021年2月18日抵达火星，连接在美国宇航局火星2020毅力号火星车的腹部。机智号预计将于2021年春天进行首次飞行测试。 NASA的喷气推进实验室为该局建造并管理毅力号和机智号的运作。位于加州帕萨迪纳的加州理工学院为NASA管理喷气推进实验室。 有关Ingenuity的更多信息，请访问：mars.nasa.gov/technology/helicopter。 影像来源：NASA/JPL-Caltech

哈勃望远镜向我们展示了未来

哈勃望远镜向我们展示了未来

ByNASA中文

Sometime in the far distant future, about 4 billion years from now, our Milky Way galaxy will collide with the neighboring Andromeda galaxy, as illustrated in this artist’s rendition. The universe is expanding and accelerating, and collisions between galaxies in close proximity to each other still happen because they are bound by the gravity of the dark matter surrounding them. The Hubble Space Telescope’s deep views of the universe show such encounters between galaxies were more common in the past when the universe was smaller. A century ago astronomers did not realize that M31 was a separate galaxy far beyond the stars of the Milky Way. Edwin Hubble measured its vast distance by uncovering a variable star that served as a “milepost marker.” Hubble went…

测试火星直升机

测试火星直升机

ByNASA中文

In this image from Jan. 18, 2019, Teddy Tzanetos, MiMi Aung and Bob Balaram of NASA’s Mars Helicopter project observe a flight test of a model of the Mars Helicopter in the Space Simulator, a 25-foot-wide (7.62 meter-wide) vacuum chamber at the Jet Propulsion Laboratory (JPL). Aung is currently the Mars Helicopter Project manager. Aung, who has worked at JPL since 1990, was selected as one of the top 100 Women in the world by the BBC in 2019. Learn about other women scientists at JPL. #WomensHistoryMonth Image Credit: NASA/JPL-Caltech 这张照片摄于2019年1月18日，美国宇航局（NASA）火星直升机项目的泰迪·扎内托斯（Teddy Tzanetos）、米米·昂（MiMi Aung）和鲍勃·巴拉兰（Bob Balaram）在喷气推进实验室(JPL)的一个25英尺宽(7.62米宽)的真空室空间模拟器中观察火星直升机模型的飞行测试。昂目前是火星直升机项目经理。 昂，自1990年以来一直在JPL工作，2019年被英国广播公司（BBC）评选为世界上最优秀的100名女性之一。 了解JPL的其他女性科学家。 #WomensHistoryMonth 图片来源：NASA/JPL-Caltech

NASA需要π！

NASA需要π！

ByNASA中文

NASA uses pi every day! Pi is instrumental in developing the size of parachutes to land on the Red Planet. In fact, pi helps engineers determine how big the parachute needs to be in order to generate the drag needed to slow down craft landing on Mars. It also helps researchers map and explore Earth and planets in our own and other solar systems. In this June 2017 photo, the supersonic parachute design that landed the Perseverance Mars rover on Mars on Feb. 18, 2021, underwent testing in a wind tunnel at NASA’s Ames Research Center. Want more? Have a Cosmic Piece of Pi! Explore some of the many ways that NASA uses pi to explore our home and the universe. Image Credit: NASA/JPL-Caltech/Ames NASA每天都在使用π!…

日本宇航员野口宗一在空间站的太阳能阵列上工作

日本宇航员野口宗一在空间站的太阳能阵列上工作

ByNASA中文

During the March 5, 2021, spacewalk, Japan Aerospace Exploration Agency (JAXA) astronaut Soichi Noguchi spent nearly 7 hours working on the farthest set of existing solar arrays on the International Space Station’s left (port) side, known as P6, to install a modification kit on solar array 4B and reconfigure the modification kit on 2B, completing tasks that were started during the Feb. 28 spacewalk. In this image, Noguchi installs solar array modification kits to ready the station for newer, more powerful solar arrays being delivered on upcoming SpaceX Dragon cargo missions. NASA astronauts Victor Glover and Michael Hopkins will continue work on the station during a spacewalk scheduled for 7:30 a.m. EST on Saturday, March 13. Image Credit: NASA 在2021年3月5日的太空行走中，日本宇宙航空研究开发机构(JAXA)的宇航员野口宗一花费了近7个小时的时间，在国际空间站左(左)侧的现有太阳能阵列(P6)上安装了一个改造组件，并在2B上重新配置了改造组件，完成了2月28日太空行走期间开始的任务。 在这张照片中，野口宗一在安装太阳能电池板改装套件，为即将到来的SpaceX龙号货运任务中更新、更强大的太阳能电池板做好准备。 NASA宇航员维克多·格洛弗和迈克尔·霍普金斯将在3月13日星期六早上7:30进行太空行走，继续为空间站工作。 图片来源:美国国家航空航天局

星云的肖像

星云的肖像

ByNASA中文

This image from the NASA/ESA Hubble Space Telescope features an impressive portrait of M1-63, an example of a bipolar planetary nebula located in the constellation of Scutum (the Shield). A nebula like this one is formed when the star at its center sheds huge quantities of material from its outer layers, leaving behind a spectacular cloud of gas and dust. It is believed that a binary system of stars at the center of the bipolar nebula is capable of creating hourglass or butterfly-like shapes like the one in this image. This is because the material from the shedding star is funneled toward its poles, with the help of the companion, creating the distinctive double-lobed structure seen in nebulae such as M1-63. Image Credit: ESA/Hubble &…

一对太空发射系统火箭助推器的堆叠完成

一对太空发射系统火箭助推器的堆叠完成

ByNASA中文

Stacking is complete for the twin Space Launch System (SLS) solid rocket boosters for NASA’s Artemis I mission. Over several weeks, workers used one of five massive cranes to place 10 booster segments and nose assemblies on the mobile launcher inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida. Engineers with Exploration Ground Systems placed the first segment on Nov. 21, 2020, and continued the process until the final nose assembly was placed on March 2. Prior to the arrival of the core stage, the team will finish installing electrical instrumentation and pyrotechnics, then test the systems on the boosters. When the SLS core stage arrives at Kennedy, technicians will transport it to the VAB, and then stack it on the…

电气工程师和美国宇航局宇航员琼·希金波坦

电气工程师和美国宇航局宇航员琼·希金波坦

ByNASA中文

March 8 of each year is celebrated around the globe as International Women’s Day. At NASA, women – be they scientists, pilots, astronauts or subject matter experts – help the agency fulfill its mission. Joan Higginbotham is one of those women. She was selected as an astronaut candidate in 1996. She began her career at NASA in 1987 as an electrical engineer at the Kennedy Space Center. In November 2007, Higginbotham retired from NASA. In this image from 2003, Higginbotham took a break from training for the STS-116 mission and is shown in front of a NASA T-38 trainer. #ChooseToChallenge #InternationalWomensDay 每年的3月8日是世界各地庆祝国际妇女节。 在NASA，女性（无论是科学家，飞行员，宇航员还是主题专家）都可以帮助该机构完成任务。琼·希金波坦就是其中之一。 1996年，她被选为宇航员候选人。1987年，她在NASA开始了自己的职业生涯，在肯尼迪航天中心担任电气工程师。2007年11月，希金波坦从NASA退休。 在这张2003年的照片中，希金波坦在STS-116任务的训练中休息了一下，并出现在NASA的T-38教练机前。 #ChooseToChallenge #InternationalWomensDay