NASA·每日一图

As NASA pays tribute and says goodbye to the Spitzer Space Telescope, one of agency’s Great Observatories, one of Spitzer’s great discoveries was that of the TRAPPIST-1 star, an ultra-cool dwarf, which has seven Earth-size planets orbiting it. Spitzer, the ground-based TRAPPIST (TRAnsiting Planets and PlanetesImals Small Telescope) telescope, and other ground-based observatories jointly made the discovery that was announced in Feb. 2017. The system was named for the TRAPPIST telescope. The discovery sets a new record for greatest number of habitable-zone planets found around a single star outside our solar system. All of these seven planets could have liquid water – key to life as we know it – under the right atmospheric conditions, but the chances are highest with the three in the…

All eyes are on south Mississippi with this month’s delivery and installation of NASA’s Space Launch System (SLS) rocket’s first core stage to Stennis Space Center for a milestone Green Run test series prior to its Artemis I flight. The Green Run testing will be the first top-to-bottom integrated testing of the stage’s systems prior to its maiden flight. The testing will be conducted on the B-2 Test Stand at Stennis, located near Bay St. Louis, Mississippi, and the nation’s largest rocket propulsion test site. Green Run testing will take place over several months and culminates with an eight-minute, full-duration hot fire of the stage’s four RS-25 engines to generate 2 million pounds of thrust, as during an actual launch. Image Credit: NASA/SSC​ 本月，NASA 太空发射系统（SLS）的第一个核心阶段交付并安装到斯坦尼斯航天中心，在“阿尔忒弥斯1号”(Artemis…

The Amidon-Bowen Elementary School choir performs at the MLK Day of Service, Tuesday, January 21, 2020, at NASA Headquarters in Washington. See more images from the day’s events on Flickr. Image Credit: NASA/Aubrey Gemignani 2020年1月21日星期二，阿米顿-鲍文小学合唱团在华盛顿NASA总部举行的MLK服务日上表演。 在Flickr上查看更多当日活动的图片。 图片来源:NASA/Aubrey Gemignani

SpaceX’s Falcon 9 rocket lifts off from Launch Complex 39A at the Kennedy Space Center at 10:30 a.m. EST on Jan. 19, 2020, carrying the Crew Dragon spacecraft on the company’s uncrewed In-Flight Abort Test. The flight test demonstrated the spacecraft’s escape capabilities in preparation for crewed flights to the International Space Station as part of the agency’s Commercial Crew Program. Image Credit: NASA 2020年1月19日，美国东部时间上午10：30，SpaceX公司的猎鹰9号火箭从位于肯尼迪航天中心的发射中心39A升空，搭载着宇航员龙飞船进行了公司的无人飞行中止测试。飞行测试证明了飞船的逃生能力，为飞往国际空间站的载人飞行做准备，这是该机构商业宇航员计划的一部分。 影像来源：NASA

This bright, somewhat blob-like object — seen in this image taken by the NASA/ESA Hubble Space Telescope — is a galaxy named NGC 1803. It is about 200 million light-years away, in the southern constellation of Pictor (the Painter’s Easel). NGC 1803 was discovered in 1834 by astronomer John Herschel. Herschel is a big name in astronomy; John, his father William and his aunt Caroline all made huge contributions to the field, and their legacies remain today. William systematically cataloged many of the objects he viewed in the night sky, named many moons in the solar system, discovered infrared radiation and more. Caroline discovered several comets and nebulas. John took this aforementioned catalog of night-sky objects and reworked and expanded it into his General Catalogue…

A multitude of swirling clouds in Jupiter’s dynamic North North Temperate Belt is captured in this image from NASA’s Juno spacecraft. Appearing in the scene are several bright-white “pop-up” clouds as well as an anticyclonic storm, known as a white oval. This color-enhanced image was taken at 4:58 p.m. EDT on Oct. 29, 2018, as the spacecraft performed its 16th close flyby of Jupiter. At the time, Juno was about 4,400 miles from the planet’s cloud tops, at a latitude of approximately 40 degrees north. Citizen scientists Gerald Eichstädt and Seán Doran created this image using data from the spacecraft’s JunoCam imager. Image Credit: Enhanced image by Gerald Eichstädt and Sean Doran (CC BY-NC-SA) based on images provided courtesy of NASA/JPL-Caltech/SwRI/MSSS 这张由NASA朱诺号宇宙飞船拍摄的照片显示，在木星活跃的北北温带有大量的旋涡云。画面中出现了几朵明亮的白色“弹出”云，以及一场被称为白色椭圆形的反气旋风暴。 这张彩色增强图片拍摄于美国东部时间10月29日下午4点58分，当时飞船正在对木星进行第16次近距离飞越。当时，朱诺号距离木星云层顶约4400英里，所在纬度约为北纬40度。 公民科学家GeraldEichstädt和SeánDoran使用飞船JunoCam成像仪的数据创建了这张图像。 影像来源：由Gerald…

NASA welcomed 11 new astronauts to its ranks Friday, increasing the number of those eligible for spaceflight assignments that will expand humanity’s horizons in space for generations to come. The new astronauts successfully completed more than two years of required basic training and are the first to graduate since the agency announced its Artemis program. The new graduates may be assigned to missions destined for the International Space Station, the Moon, and ultimately, Mars. With a goal of sustainable lunar exploration later this decade, NASA will send the first woman and next man to the surface on the Moon by 2024. Additional lunar missions are planned once a year thereafter and human exploration of Mars is targeted for the mid-2030s. Image Credit: NASA NASA周五迎来了11名新宇航员，这增加了有资格执行太空飞行任务的人数，这些任务将为未来几代人拓展人类在太空的视野。这些新宇航员成功地完成了两年多的基本训练，是该机构宣布其Artemis项目以来的第一批毕业生。 这些新毕业生可能会被分配到国际空间站、月球以及最终的火星任务。NASA的目标是在本世纪末实现对月球的可持续探索，到2024年，他们将把第一位女性宇航员和第二位男性宇航员送上月球表面。此后，他们每年还计划执行一次额外的月球任务，并计划在本世纪30年代中期对火星进行人类探索。…

NASA’s next destination in the solar system is the unique, richly organic world Titan. Advancing our search for the building blocks of life, the Dragonfly mission will fly multiple sorties to sample and examine sites around Saturn’s icy moon. Dragonfly is slated to launch in 2026 and arrive in 2034. The rotorcraft will fly to dozens of promising locations on Titan looking for prebiotic chemical processes common on both Titan and Earth. Dragonfly marks the first time NASA will fly a multi-rotor vehicle for science on another planet; it has eight rotors and flies like a large drone. It will take advantage of Titan’s dense atmosphere – four times denser than Earth’s – to become the first vehicle ever to fly its entire science payload…