Crew-3向空间站发射

Crew-3向空间站发射

ByNASA中文

A SpaceX Falcon 9 rocket carrying the company’s Crew Dragon spacecraft is launched on NASA’s SpaceX Crew-3 mission to the International Space Station with NASA astronauts Raja Chari, Tom Marshburn, Kayla Barron, and ESA (European Space Agency) astronaut Matthias Maurer onboard, Wednesday, Nov. 10, 2021, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-3 mission is the third crew rotation mission of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Chari, Marshburn, Barron, Maurer launched at 9:03 p.m. EST from Launch Complex 39A at the Kennedy Space Center to begin a six month mission onboard the orbital outpost. 2021年11月10日星期三，在NASA位于佛罗里达州的肯尼迪航天中心，载人龙飞船搭载着SpaceX猎鹰9号火箭搭载着该公司的载人龙飞船在Crew-3任务中发射，前往空间站。载人龙飞船上载有NASA宇航员拉贾·查里、汤姆·马什本、凯拉·巴伦和欧空局（European Space Agency）宇航员马蒂亚斯·毛雷尔，他们前往国际空间站执行任务。NASA的SpaceX Crew-3任务是SpaceX载人龙飞船和猎鹰9号火箭前往国际空间站的第三次机组人员轮换任务，是NASA商业宇航员计划的一部分。查里、马什本、巴伦、毛雷尔于美国东部时间晚上9:03从肯尼迪航天中心的39A发射场发射，开始在轨道前哨执行为期六个月的任务。 Image credit: NASA/Aubrey Gemignani 图片来源：NASA/Aubrey Gemignani

M33：三角大星系

M33：三角大星系

ByNASA中文

2021年11月12日 M33: The Triangulum Galaxy Image Credit & Copyright: Bernard Miller Explanation: The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-years in diameter, third largest in the Local Group of galaxies after the Andromeda Galaxy (M31), and our own Milky Way. About 3 million light-years from the Milky Way, M33 is itself thought to be a satellite of the Andromeda Galaxy and astronomers in these two galaxies would likely have spectacular views of each other’s grand spiral star systems. As for the view from planet Earth, this sharp image shows off M33’s blue star clusters and pinkish star forming regions along the galaxy’s loosely wound…

NGC 1333：英仙座的恒星育婴室

NGC 1333：英仙座的恒星育婴室

ByNASA中文

2021年11月11日 NGC 1333: Stellar Nursery in Perseus Image Credit & Copyright: Michael Sherick Explanation: NGC 1333 is seen in visible light as a reflection nebula, dominated by bluish hues characteristic of starlight reflected by interstellar dust. A mere 1,000 light-years distant toward the heroic constellation Perseus, it lies at the edge of a large, star-forming molecular cloud. This telescopic close-up spans about two full moons on the sky or just over 15 light-years at the estimated distance of NGC 1333. It shows details of the dusty region along with telltale hints of contrasty red emission from Herbig-Haro objects, jets and shocked glowing gas emanating from recently formed stars. In fact, NGC 1333 contains hundreds of stars less than a million years old, most still hidden…

木星湍流大气中的摩卡漩涡

木星湍流大气中的摩卡漩涡

ByNASA中文

During its 36th low pass over Jupiter, NASA’s Juno spacecraft captured this view of striking cloud bands and swirls in the giant planet’s mid-southern latitudes. The dark, circular vortex near the center of the image is a cyclone that spans roughly 250 miles (about 400 kilometers). The color at its center is likely to be the result of descending winds that cleared out upper-level clouds, revealing darker material below. 在第36次低空掠过木星时，NASA的朱诺号航天器捕捉到了这一巨行星中南纬度地区引人注目的云带和漩涡的景色。靠近图像中心的黑暗的圆形漩涡是一个气旋，其跨度大约为250英里（约400公里）。其中心的颜色可能是下降的风清除了上层云层的结果，露出了下面较暗的物质。 Citizen scientist Brian Swift used a raw JunoCam image digitally projected onto a sphere to create this view. It has been rotated so that north is up. The original image was taken on Sept. 2, 2021, at 4:09 p.m. PDT (7:09 p.m. EDT). At the time, the spacecraft was about 16,800 miles (about 27,000 kilometers)…

太阳绿闪的影片

太阳绿闪的影片

ByNASA中文

2021年11月10日 Video of a Green Flash Video Credit & Copyright: Paolo Lazzarotti Explanation: Many think it is just a myth. Others think it is true but its cause isn’t known. Adventurers pride themselves on having seen it. It’s a green flash from the Sun. The truth is the green flash does exist and its cause is well understood. Just as the setting Sun disappears completely from view, a last glimmer appears startlingly green. The effect is typically visible only from locations with a low, distant horizon, and lasts just a few seconds. A green flash is also visible for a rising Sun, but takes better timing to spot. A dramatic green flash was caught on video last month as the Sun set beyond the Ligurian…

Crew-2宇航员安全溅落在墨西哥湾

Crew-2宇航员安全溅落在墨西哥湾

ByNASA中文

2021年11月8日星期一，SpaceX载人龙飞船奋进号在佛罗里达州彭萨科拉海岸外的墨西哥湾溅落后不久，SpaceX GO Navigator回收船上的SpaceX载人龙飞船奋进号内可以看到欧空局（ESA）宇航员托马斯·佩斯奎特（左）、NASA宇航员梅根·麦克阿瑟和谢恩·金布罗以及日本宇宙航空研究开发机构（JAXA）宇航员星出彰彦（右）。NASA的SpaceX Crew-2任务是SpaceX载人龙飞船和猎鹰9号火箭前往国际空间站的第二次运行任务，是NASA商业宇航员计划的一部分。 影像来源：NASA/Aubrey Gemignani NASA的SpaceX Crew-2宇航员周一乘坐奋进号飞船安全溅落在佛罗里达州海岸的墨西哥湾，完成了NASA第二次前往国际空间站的长期商业宇航员任务。这次任务创造了美国载人航天器最长的太空飞行记录。四名国际乘员在轨道上停留了199天，超过了今年早些时候NASA的SpaceX Crew-1所创造的168天记录。 NASA宇航员谢恩·金布罗和梅根·麦克阿瑟、日本宇宙航空研究开发机构（JAXA）宇航员星出彰彦和ESA宇航员托马斯·佩斯凯于美国东部时间晚上10点33分在佛罗里达州彭萨科拉海岸附近以降落伞辅助的方式返回地球。乘坐SpaceX回收船的工作人员成功回收了航天器和宇航员。返回岸边后，宇航员将飞回位于休斯顿的NASA约翰逊航天中心。 “我们很高兴谢恩、梅根、阿基和托马斯在国际空间站的又一次创纪录的长期成功任务后安全返回地球。”NASA局长比尔·纳尔逊说。“祝贺NASA和SpaceX的团队，他们如此努力地确保了他们的成功溅落。NASA的商业宇航员计划继续展示安全、可靠的运输，以在空间站进行重要的科学研究和维护。” Crew-2任务于4月23日在佛罗里达州NASA肯尼迪航天中心用猎鹰9号火箭发射。4月24日，在发射近24小时后，奋进号载人舱与空间站的和谐号舱的前舱对接。 金布罗、麦克阿瑟、星出彰彦和佩斯凯在执行任务期间旅行了84,653,119英里，在空间站停留了198天，绕地球运行了3194圈。 在整个任务中，Crew-2的宇航员为一系列的科学和维护活动、科学调查和技术演示做出了贡献。此外，他们在轨道实验室进行了四次太空行走和多次公众参与活动。他们研究了气态火焰在微重力下的表现，在空间站的植物栖息地设施中培育了绿辣椒，安装了自由飞行的机器人助手，甚至戴上虚拟现实护目镜来测试新的太空锻炼方法，以及其他许多科学活动。宇航员们拍摄了数百张地球照片，这是宇航员地球观测调查的一部分，这是空间站上持续时间最长的调查之一，它有助于跟踪自然灾害和地球的变化。 金布罗、星出彰彦和佩斯凯还完成了四次太空行走，以安装、部署或准备安装国际空间站推出式太阳能电池组。这使得金布罗、星出彰彦和佩斯凯的太空行走总数分别达到9次、4次和6次。星出彰彦和佩斯凯在9月12日进行的第四次太空行走，是空间站历史上第一次没有美国人或俄罗斯人参加的太空行走。 7月21日，所有四名Crew-2宇航员登上奋进号，进行端口搬迁演习，将他们的航天器从空间站和谐舱的前向端口移动到面向太空的端口。 Crew-2飞行是NASA商业宇航员计划的一部分，该计划与美国航空航天业合作，用美国火箭和航天器从美国本土向空间站发射宇航员。Crew-2的溅落发生在NASA的SpaceX Crew-3发射之前，目前计划不早于11月10日星期三，执行另一项为期约6个月的长期任务。 奋进号将返回SpaceX在佛罗里达州的龙的巢穴（Dragon Lair）进行检查和处理，那里的团队将检查航天器在整个飞行过程中的数据和性能。 在Crew-3发射之后，NASA和SpaceX的下一次乘员轮换任务是Crew-4，目前的计划是在2022年4月发射。Crew-3宇航员计划在欢迎他们的Crew-3同事进入轨道实验室后不久返回地球。 NASA的商业宇航员计划目标是安全、可靠且经济高效地往返国际空间站。这已经提供了额外的研究时间，并增加了在人类微重力探索试验平台上的发现机会，包括帮助NASA为人类探索月球和火星做准备。 如欲了解更多关于NASA商业宇航员计划的信息，请访问： https://www.nasa.gov/commercialcrew 参考来源： https://www.nasa.gov/press-release/crew-2-astronauts-safely-splash-down-in-gulf-of-mexico

奋进号载人龙飞船在成功溅落后被回收

奋进号载人龙飞船在成功溅落后被回收

ByNASA中文

The SpaceX Crew Dragon Endeavour spacecraft is lifted onto the GO Navigator recovery ship after it landed with NASA astronauts Shane Kimbrough and Megan McArthur, Japan Aerospace Exploration Agency (JAXA) astronaut Aki Hoshide, and ESA (European Space Agency) astronaut Thomas Pesquet in the Gulf of Mexico off the coast of Pensacola, Florida, Monday, Nov. 8, 2021. Kimbrough, McArthur, Hoshide, and Pesquet traveled 84,653,119 statute miles during their mission, stayed 198 days aboard the space station, and completed 3,194 orbits around Earth. 2021年11月8日星期一，SpaceX的奋进号载人龙飞船与NASA宇航员谢恩·金姆布罗和梅根·麦克阿瑟、日本宇宙航空研究开发机构（JAXA）宇航员星出彰彦和ESA（欧洲航天局）宇航员托马斯·佩斯凯在佛罗里达州彭萨科拉海岸的墨西哥湾溅落后被吊上GO Navigator回收船。金姆布罗、麦克阿瑟、星出彰彦和佩斯凯在执行任务期间旅行了84,653,119公理英里，在空间站上停留了198天，并完成了3,194次绕地球的轨道。 NASA’s SpaceX Crew-2 mission is the second operational mission of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program, which has worked with the U.S. aerospace industry to launch…

假天文图大观：只有一幅是真的

假天文图大观：只有一幅是真的

ByNASA中文

2021年11月09日 All of These Space Images are Fake Except One Image Credit: M. J. Smith et al. (U. Hertfordshire) Explanation: Why would you want to fake a universe? For one reason — to better understand our real universe. Many astronomical projects seeking to learn properties of our universe now start with a robotic telescope taking sequential images of the night sky. Next, sophisticated computer algorithms crunch these digital images to find stars and galaxies and measure their properties. To calibrate these algorithms, it is useful to test them on fake images from a fake universe to see if the algorithms can correctly deduce purposely imprinted properties. The featured mosaic of fake images was created to specifically mimic the images that have appeared on NASA’s Astronomy…

哈勃发现的孵化中的暗星frEGGs

哈勃发现的孵化中的暗星frEGGs

ByNASA中文

This image shows knots of cold, dense interstellar gas where new stars are forming. These Free-floating Evaporating Gaseous Globules (frEGGs) were first seen in Hubble’s famous 1995 image of the Eagle Nebula. Because these lumps of gas are dark, they are rarely seen by telescopes. They can be observed when the newly forming stars ignite, their intense ultraviolet radiation eroding the surrounding gas away and letting the denser, more resistant frEGGs remain. The frEGGs seen in this image are located in the Northern Coalsack Nebula in the direction of Cygnus, the Swan. 这张图片显示了新的恒星正在形成的冷而密集的星际气体结。这些自由漂浮的蒸发气态小球（frEGG）首次出现在哈勃1995年著名的鹰状星云的图像中。因为这些气团是黑暗的，所以它们很少被望远镜看到。当新形成的恒星点燃时，它们可以被观察到，它们强烈的紫外线辐射会侵蚀周围的气体，让密度更大、抵抗力更强的frEGG保留下来。在这张图片中看到的frEGG位于天鹅座方向的北部煤袋星云中。 This Hubble image also features two giant stars. The left star is a rare, giant O-type star, which are very bright, blue-white stars known to be the hottest in the universe. These…

跳出太阳的暗条

跳出太阳的暗条

ByNASA中文

2021年11月08日 A Filament Leaps from the Sun Video Credit & Copyright: Stéphane Poirier Explanation: Why, sometimes, does part of the Sun’s atmosphere leap into space? The reason lies in changing magnetic fields that thread through the Sun’s surface. Regions of strong surface magnetism, known as active regions, are usually marked by dark sunspots. Active regions can channel charged gas along arching or sweeping magnetic fields — gas that sometimes falls back, sometimes escapes, and sometimes not only escapes but impacts our Earth. The featured one-hour time-lapse video — taken with a small telescope in France — captured an eruptive filament that appeared to leap off the Sun late last month. The filament is huge: for comparison, the size of the Earth is shown on the…