武仙大球状星团

武仙大球状星团

ByNASA中文

2023年9月1日 The Great Globular Cluster in Hercules Image Credit & Copyright: Serge Brunier, Jean-François Bax, David Vernet OCA/C2PU Explanation: In 1716, English astronomer Edmond Halley noted, “This is but a little Patch, but it shows itself to the naked Eye, when the Sky is serene and the Moon absent.” Of course, M13 is now less modestly recognized as the Great Globular Cluster in Hercules, one of the brightest globular star clusters in the northern sky. Sharp telescopic views like this one reveal the spectacular cluster’s hundreds of thousands of stars. At a distance of 25,000 light-years, the cluster stars crowd into a region 150 light-years in diameter. Approaching the cluster core, upwards of 100 stars could be contained in a cube just 3 light-years on…

墨西哥湾的伊达利亚飓风

墨西哥湾的伊达利亚飓风

ByNASA中文

As the International Space Station orbited 261 miles above Earth on Aug. 29, 2023, one of the space station’s external high-definition cameras captured Hurricane Idalia in the Gulf of Mexico. Hurricane Idalia made landfall over the Big Bend region of Florida on the morning of Aug. 30, 2023, as a category 3 storm. Winds measured 205 kilometers (125 miles) per hour as the storm reached land. Watch an animation of the storm’s wind field. Image Credit: NASA 2023年8月29日，当国际空间站在地球上空261英里的轨道上运行时，空间站的一个外部高清相机在墨西哥湾捕捉到了飓风伊达利亚。2023年8月30日上午，飓风伊达利亚在佛罗里达州的大本德地区登陆，成为3级飓风。飓风登陆时风速为每小时205公里（125英里）。观看风暴风场的动画。 图片来源: NASA

载人7号“星云”

载人7号“星云”

ByNASA中文

2023年8月31日 The Crew-7 Nebula Image Credit & Copyright: Michael Seeley Explanation: Not the James Webb Space Telescope’s latest view of a distant galactic nebula, this illuminated cloud of gas and dust dazzled early morning spacecoast skygazers on August 26. The snapshot was taken about 2 minutes after the launch of of a Falcon 9 rocket on the SpaceX Crew-7 mission, the seventh commercial crew rotation mission for the International Space Station. It captures drifting plumes and exhaust from the separated first and second stage illuminated against the still dark skies. Near the center of the image, within the ragged blueish ring, are two bright points of light. The lower one is the second stage of the rocket carrying 4 humans to space in a Crew…

圭恩·布鲁福德，第一位进入太空的非裔美国人

圭恩·布鲁福德，第一位进入太空的非裔美国人

ByNASA中文

In this image from Sept. 5, 1983, Guion “Guy” Bluford checks out the sample pump on the continuous flow electrophoresis system (CFES) experiment in the middeck of the Earth-orbiting space shuttle Challenger. Forty years ago today, he launched from NASA’s Kennedy Space Center in Florida, becoming the first African American to fly in space. Bluford was a member of NASA’s “Thirty-Five New Guys” – the 1978 astronaut class, which had the first African American, the first Asian American, and the first women astronauts. During the STS-8 mission, the crew deployed the Indian National Satellite INSAT-1B, operated the Canadian-built Remote Manipulator System with the Payload Flight Test Article, operated the CFES, conducted medical measurements to understand biophysiological effects of spaceflight, and activated four “Getaway Special” canisters….

八月的满月

八月的满月

ByNASA中文

2023年8月30日 Full Moons of August Image Credit & Copyright: Gianni Tumino Explanation: Near perigee, the closest point in its almost moonthly orbit, a Full Moon rose as the Sun set on August 1. Its brighter than average lunar disk was captured in this dramatic moonrise sequence over dense cloud banks along the eastern horizon from Ragusa, Sicily. Illuminating night skies around planet Earth it was the second supermoon of 2023. Yet again near perigee, the third supermoon of 2023 will also shine on an August night. Rising as the Sun sets tonight this second Full Moon in August will be known to some as a Blue Moon, even though scattered sunlight gives the lunar disk a reddened hue. Defined as the second full moon in…

用气象气球研究风

用气象气球研究风

ByNASA中文

Rocky Garcia and Wesley James prepare a weather balloon to collect wind data at NASA’s Armstrong Flight Research Center in Edwards, California, on July 20, 2023. Researchers measured wind at altitudes below 2,000 feet using drones, sensors, weather balloons, and other technology during the Advanced Exploration of Reliable Operation at Low Altitudes: Meteorology, Simulation and Technology campaign. This information could fill knowledge gaps to resolve wind and weather unknowns that could hinder Advanced Air Mobility flights and to improve weather forecasts. Image Credit: NASA/Carla Thomas 2023年7月20日，洛基·加西亚和韦斯利·詹姆斯在NASA位于加利福尼亚州爱德华兹的阿姆斯特朗飞行研究中心准备一个气象气球来收集风的数据。在“低空可靠运行高级探索:气象、模拟和技术”活动中，研究人员使用无人机、传感器、气象气球和其他技术测量了2000英尺以下高度的风。这些信息可以填补知识空白，解决可能阻碍先进空中机动飞行的风和天气未知问题，并改善天气预报。 影像来源：NASA/Carla Thomas

韦伯影像: 不寻常的螺旋星系M66

韦伯影像: 不寻常的螺旋星系M66

ByNASA中文

2023年8月29日 Unusual Spiral Galaxy M66 from Webb Image Credit: NASA, ESA, CSA, JWST; Processing: Brian Tomlinson Explanation: Why isn’t spiral galaxy M66 symmetric? Usually, density waves of gas, dust, and newly formed stars circle a spiral galaxy‘s center and create a nearly symmetric galaxy. The differences between M66’s spiral arms and the apparent displacement of its nucleus are all likely caused by previous close interactions and the tidal gravitational pulls of nearby galaxy neighbors M65 and NGC 3628. The galaxy, featured here in infrared light taken by the James Webb Space Telescope, spans about 100,000 light years, lies about 35 million light years distant, and is the largest galaxy in a group known as the Leo Triplet. Like many spiral galaxies, the long and intricate…

Crew-7升空

Crew-7升空

ByNASA中文

At 3:27 a.m. EDT on Saturday, Aug. 26, NASA’s SpaceX Crew-7 crew members launched from NASA’s Kennedy Space Center in Florida. A SpaceX Falcon 9 rocket carried NASA astronaut Jasmin Moghbeli, European Space Agency astronaut Andreas Mogensen, Japan Aerospace Exploration Agency astronaut Satoshi Furukawa, and Roscosmos cosmonaut Konstantin Borisov aboard SpaceX’s Dragon spacecraft. They docked to the International Space Station and joined the current space station crew on Sunday, Aug. 27. While on the orbiting laboratory, Crew-7 will conduct new scientific research to benefit humanity on Earth and prepare for human exploration beyond low Earth orbit, including the collection of microbial samples from the exterior of the space station, the first study of human response to different spaceflight durations, and an investigation of the physiological…