NASA·每日一图 | Page 86 of 146

土星环的景观

ByNASA中文 2021年7月16日2021年7月16日

This artist’s illustration shows the Cassini spacecraft in orbit around Saturn. Cassini made 22 orbits that swooped between the rings and the planet before ending its 13-year tour of the ringed planet on Sept. 15, 2017, with a final plunge into Saturn. Cassini spacecraft shared the wonders of Saturn and its family of icy moons—taking us to astounding worlds where methane rivers run to a methane sea and where jets of ice and gas are blasting material into space from a liquid water ocean that might harbor the ingredients for life. Image Credit: NASA/JPL-Caltech 这幅艺术家的插图展示了环绕土星轨道的卡西尼号宇宙飞船。卡西尼号在土星环和土星之间进行了22次轨道飞行，然后于2017年9月15日结束了它对这颗环状行星的13年之旅，最后坠入土星。卡西尼号飞船与我们分享了土星及其冰冷卫星家族的奇迹——把我们带到了令人震惊的世界，那里的甲烷河流流入甲烷海洋，冰和气体的喷流将液态水海洋中可能孕育着生命成分的物质喷射到太空中。图片来源: NASA/JPL-Caltech

NASA·每日一图

庆祝在木星的5周年

ByNASA中文 2021年7月15日2021年7月15日

On July 4, 2016, our Juno spacecraft arrived at Jupiter on a mission to peer through the gas giant planet’s dense clouds and answer questions about the origins of our solar system. Since its arrival, Juno has provided scientists with a treasure trove of data about the planet’s origins, interior structures, atmosphere and magnetosphere. Juno is the first mission to observe Jupiter’s deep atmosphere and interior, and will continue to delight with dazzling views of the planet’s colorful clouds and Galilean moons. As it circles Jupiter, Juno provides critical knowledge for understanding the formation of our own solar system, the Jovian system and the role giant planets play in putting together planetary systems elsewhere. Learn more about the mission and download other groovy images. Image…

NASA·每日一图

向航天飞机收尾工作人员致敬

ByNASA中文 2021年7月14日2021年7月14日

This uniform in the center of this image belonged to one of the unsung heroes of the Space Shuttle Program – Travis Thompson, former Closeout Crew Lead. The closeout crew was responsible for assisting the astronauts to strap into the shuttle’s crew module and take care of any other last-minute needs that arose. Ultimately, they close and seal the crew access hatch and leave the astronauts behind before they launch into space. On July 9, 2021, Thompson, who served for nearly 100 missions, and Deputy Administrator and former shuttle commander Pamela Melroy met to view his uniform at its exhibit in the National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, VA. Melroy presented him with a plaque for the occasion and surprised…

NASA·每日一图

SpaceX龙补给飞船离开空间站

ByNASA中文 2021年7月13日2021年7月13日

The SpaceX Cargo Dragon resupply ship departs the International Space Station after it undocked from the Harmony module’s space-facing international docking adapter on July 8, 2021. The central portion of the orbiting lab’s truss structure and a pair of antennas dominate the right foreground. Image Credit: NASA 2021年7月8日，SpaceX龙货运补给飞船与和谐号模块面向太空的国际对接适配器分离后离开国际空间站。轨道实验室的桁架结构的中心部分和一对天线占据了右边的前景。图片来源:美国国家航空航天局

NASA·每日一图

哈勃望远镜瞥见一对星系二人组

ByNASA中文 2021年7月11日

Two enormous galaxies capture your attention in this spectacular image taken with the NASA/ESA Hubble Space Telescope using the Wide Field Camera 3 (WFC3). The galaxy on the left is a lenticular galaxy, named 2MASX J03193743+4137580. The side-on spiral galaxy on the right is more simply named UGC 2665. Both galaxies lie approximately 350 million light-years from Earth, and they both form part of the huge Perseus galaxy cluster. Perseus is an important figure in Greek mythology, renowned for slaying Medusa the Gorgon – who is herself famous for the unhappy reason that she was cursed to have living snakes for hair. Given Perseus’s impressive credentials, it seems appropriate that the galaxy cluster is one of the biggest objects in the known universe, consisting of…

NASA·每日一图

NASA历史上的这一周：航天飞机计划的最后一次发射 – 2011年7月8日

ByNASA中文 2021年7月9日2021年7月9日

This week in 2011, space shuttle Atlantis, mission STS-135, launched from NASA’s Kennedy Space Center to the International Space Station. STS-135 carried the Raffaello multipurpose logistics module to deliver supplies, logistics, and spare parts to the orbiting lab. This was the final launch of the Space Shuttle Program. Today, the Payload Operations Integration Center at NASA’s Marshall Space Flight Center serves as “science central” for the space station, working 24/7, 365 days a year in support of the orbiting laboratory’s science experiments. After 20 years of continuous human presence, the space station remains the sole space-based proving ground and stepping stone toward achieving the goals of the Artemis program. The NASA History Program is responsible for generating, disseminating, and preserving NASA’s remarkable history and providing…

NASA·每日一图

小行星带中有一颗斯塔尔星

ByNASA中文 2021年7月8日2021年7月8日

Our birthday wishes for Ringo Starr’s 81st birthday are almost boundless, extending all the way beyond Mars to our solar system’s asteroid belt, home to the asteroid that bears his name, 4150 Starr. Learn more about the planetary body that bears his name. Image Credit: NASA 我们对林戈·斯塔尔（Ringo Starr）81岁生日的祝福几乎是无限的，一直延伸到火星以外的太阳系小行星带，那里有以他的名字命名的小行星，4150斯塔尔。了解更多关于以他的名字命名的小行星的信息。图片来源：美国国家航空航天局

NASA·每日一图

在围绕红矮星的轨道上运行

ByNASA中文 2021年7月7日2021年7月7日

Planet TOI-1231 b orbits a red dwarf star some 90 light-years away from Earth and is oddly reminiscent of our own Neptune – that is, a gaseous world with a potentially rich atmosphere, ripe for study. The planet is more than 3 ½ times as big around as Earth and warm by Earthly standards at 134 degrees Fahrenheit (57 Celsius). But astronomers say it is one of the “coolest,” comparatively small planets known to date, and in a prime position for the components of its atmosphere to be teased apart by space telescopes. Red dwarf stars are smaller but longer lived than our own Sun – with a year, once around the star, that is 24 days long. But the planet stays relatively cool despite…

NASA·每日一图

哈勃望远镜观测到了一个由红、白、蓝组成的星团

ByNASA中文 2021年7月3日2021年7月3日

This image taken with the NASA/ESA Hubble Space Telescope depicts the open star cluster NGC 330, which lies around 180,000 light-years away inside the Small Magellanic Cloud. The cluster – which is in the constellation Tucana (the Toucan) – contains a multitude of stars, many of which are scattered across this striking image. Because star clusters form from a single primordial cloud of gas and dust, all the stars they contain are roughly the same age. This makes them useful natural laboratories for astronomers to learn how stars form and evolve. This image uses observations from Hubble’s Wide Field Camera 3 and incorporates data from two very different astronomical investigations. The first aimed to understand why stars in star clusters appear to evolve differently from…

NASA·每日一图

钱德拉提高了银河系中心的温度

ByNASA中文 2021年7月3日2021年7月3日

This 2004 image was produced by combining a dozen observations from the Chandra X-Ray Observatory made of a 130 light-year region in the center of the Milky Way. The colors represent low (red), medium (green) and high (blue) energy X-rays. Thanks to Chandra’s unique resolving power, astronomers have now been able to identify thousands of point-like X-ray sources due to neutron stars, black holes, white dwarfs, foreground stars, and background galaxies. What remains is a diffuse X-ray glow extending from the upper left to the lower right, along the direction of the disk of the Galaxy. The spectrum of the diffuse glow is consistent with a hot gas cloud that contains two components – 10-million-degree Celsius gas and 100-million-degree gas. The diffuse X-rays appear to…