从国际空间站上拍摄到的夏威夷火山

从国际空间站上拍摄到的夏威夷火山

ByNASA中文

Hawaii’s big island and its two major volcanoes Mauna Kea and Mauna Loa rest under a partly cloudy sky on Feb. 8, 2022, in this view from the International Space Station. Mauna Loa, the world’s largest active volcano had been quiet for nearly 40 years. However, in 2022, the volcano began to stir, showing increased numbers of small earthquakes and subtle swelling of certain land surfaces in September. On Nov. 27, fountains of lava began spurting from the mountain’s Northeast Rift Zone and streams of molten rock flowed to the north. Ten days into the eruption, a NASA aircraft conducted its first flight over the erupting volcano. The aircraft carried NASA’s Uninhabited Aerial Vehicle Synthetic Aperture Radar system, which was used to map the volcano’s…

韦伯在船底星云中发现了年轻恒星的爆发

韦伯在船底星云中发现了年轻恒星的爆发

ByNASA中文

By taking a closer look at one of Webb’s first images, the iconic Cosmic Cliffs, scientists have found dozens of energetic jets and outflows from young stars previously hidden by dust clouds. The discovery marks the beginning of a new era of investigating how stars like our Sun form, and how the radiation from nearby massive stars might affect the development of planets. The two dozen previously unknown outflows from extremely young stars were found by analyzing data from a specific wavelength of infrared light (4.7 microns). Webb’s observations uncovered a gallery of objects ranging from small fountains to burbling behemoths that extend light-years from the forming stars. Download the full-resolution, uncompressed version and supporting visuals from the Space Telescope Science Institute. Image Credit: NASA,…

向洞察号火星着陆器说“再见”

向洞察号火星着陆器说“再见”

ByNASA中文

On Dec. 18, 2022, InSight did not respond to communications from Earth. As expected, the lander’s power has been declining for months, and it’s assumed InSight may have reached its end of operations. NASA will declare the mission over when InSight misses two consecutive communication sessions with the spacecraft orbiting Mars, part of the Mars Relay Network – but only if the cause of the missed communication is the lander itself. After that, NASA’s Deep Space Network will listen for a time, just in case. InSight launched from Vandenberg Air Force Base in California on May 5, 2018. After a six-month cruise, InSight landed on Mars on Nov. 26, 2018, and immediately began surface operations at Elysium Planitia, but science data collection didn’t start fully…

NASA、穆格SureFly测试飞机噪音

NASA、穆格SureFly测试飞机噪音

ByNASA中文

NASA is taking a leading role to help integrate new types of Advanced Air Mobility aircraft like air taxis and delivery drones into the sky, helping emerging markets to safely develop an air transportation system that moves people and cargo between places previously not served or underserved by aviation. NASA is working with private sector developers of electric vertical take-off and landing (eVTOL) aircraft, like Moog Surefly, to study the levels of noise ​they make. In this photo from summer 2022, the Moog Surefly vehicle hovers above an array of 28 ground-level microphones at Cincinnati Municipal Airport. The microphones picked up noise data, which researchers from our Glenn Research Center in Cleveland will analyze and share the data with Moog. Data from tests like the…

哈勃望远镜观测到一个布满恒星的宇宙云

哈勃望远镜观测到一个布满恒星的宇宙云

ByNASA中文

A portion of the open cluster NGC 6530 appears as a roiling wall of smoke studded with stars in this image from the NASA/ESA Hubble Space Telescope. NGC 6530 is a collection of several thousand stars lying around 4,350 light-years from Earth in the constellation Sagittarius. The cluster is set within the larger Lagoon Nebula, a gigantic interstellar cloud of gas and dust. Hubble has previously imaged the Lagoon Nebula several times, including these images released in 2010 and 2011. It is the nebula that gives this image its distinctly smoky appearance; clouds of interstellar gas and dust stretch from one side of the image to the other. Astronomers investigated NGC 6530 using Hubble’s Advanced Camera for Surveys and Wide Field Planetary Camera 2. They…

哈勃望远镜拍摄到壮观的棒状螺旋

哈勃望远镜拍摄到壮观的棒状螺旋

ByNASA中文

Against an inky black backdrop, the blue swirls of spiral galaxy NGC 6956 stand out radiantly. NGC 6956 is a barred spiral galaxy, a common type of spiral galaxy with a bar-shaped structure of stars in its center. This galaxy exists 214 million light-years away in the constellation Delphinus. Scientists used NASA’s Hubble Space Telescope to image NGC 6956 to study its Cepheid variable stars, which are stars that brighten and dim at regular periods. Since the period of Cepheid variable stars is a function of their brightness, scientists can measure how bright these stars appear from Earth and compare it to their actual brightness to calculate their distance. As a result, these stars are extremely useful in determining the distance of cosmic objects, which…

SWOT卫星，猎鹰9号火箭驶向发射台

SWOT卫星，猎鹰9号火箭驶向发射台

ByNASA中文

A SpaceX Falcon 9 rocket with the Surface Water and Ocean Topography (SWOT) spacecraft onboard is seen as it rolls out to the pad, Tuesday, Dec. 13, 2022, at Space Launch Complex 4E at Vandenberg Space Force Base in California. Jointly developed by NASA and Centre National D’Etudes Spatiales, with contributions from the Canadian Space Agency and the United Kingdom Space Agency, SWOT is the first satellite mission that will observe nearly all water on Earth’s surface, measuring the height of water in the planet’s lakes, rivers, reservoirs, and the ocean. SWOT is set to launch at 6:46 a.m. EST on Dec. 15, 2022. Image Credit: NASA/Keegan Barber 2022年12月13日（星期二），在加利福尼亚州范登堡空军基地的4E航天发射场，一枚搭载有地表水和海洋地形（SWOT）航天器的SpaceX猎鹰9号火箭驶向发射台。。SWOT由NASA和国家太空研究中心联合开发，加拿大航天局和英国航天局提供资助，，它是第一个观测地球表面几乎所有水的卫星任务，测量地球湖泊、河流、水库和海洋中的水的高度。SWOT将于美国东部时间2022年12月15日上午6点46分发射。 影像来源：NASA/Keegan Barber

双子星座7号和双子星座6A号终于相遇

双子星座7号和双子星座6A号终于相遇

ByNASA中文

In this photo from Dec. 15, 1965, the Gemini-VII spacecraft is seen from the Gemini-VI-A spacecraft during their rendezvous mission in space. The two spacecraft are approximately 43 feet apart. Astronauts Jim Lovell and Frank Borman launched on Gemini-VII on Dec. 4, 1965, and eventually spent two weeks in orbit, the longest-duration flight at that time. Just as Orion and the International Space Station are helping NASA learn how to go to Mars, the Gemini program defined and tested the skills NASA would need to go to the Moon in the 1960s and 1970s. Gemini had four main goals: to test an astronaut’s ability to fly long-duration missions (up to two weeks in space); to understand how spacecraft could rendezvous and dock in orbit around…

猎户座回到地球

猎户座回到地球

ByNASA中文

At 12:40 p.m. EST, Dec. 11, 2022, the Orion spacecraft for the Artemis I mission splashed down in the Pacific Ocean after a 25.5-day mission to the Moon. Flight controllers in mission control at NASA’s Johnson Space Center in Houston spent about two hours performing tests in open water to gather additional data about the spacecraft. Orion was then recovered by NASA’s Landing and Recovery team, U.S. Navy and Department of Defense partners aboard the USS Portland. Recovery personnel also spent time collecting detailed imagery of the spacecraft before beginning to pull the capsule into the USS Portland’s well deck. The ship will soon begin its trip back to U.S. Naval Base San Diego, where engineers will remove Orion from the ship in preparation for…

返回地球前，猎户座凝视着月亮

返回地球前，猎户座凝视着月亮

ByNASA中文

On flight day 20 of the Artemis I mission, Dec. 5, 2022, Orion captured the Moon on the day of return powered flyby, the final major engine maneuver of the flight test. The burn, which used the spacecraft’s main engine on the European-built service module, lasted 3 minutes, 27 seconds, and changed the velocity of the spacecraft by about 655 mph (961 feet per second). It also committed the spacecraft to a Dec. 11 splashdown, which will air live on NASA Television, our website, and the NASA app. Follow Orion’s journey by visiting the Artemis I blog. Image Credit: NASA 2022年12月5日，在阿尔忒弥斯1号任务的第20天，猎户座在返回动力飞越的当天拍摄了月球得照片，这是飞行测试的最后一次主要发动机机动。这次点火使用了欧洲制造的服务舱上的航天器主发动机，持续了3分27秒，使航天器的速度改变了约655英里/小时（961英尺/秒）。它还承诺将在12月11日进行航天器溅落，届时将在NASA电视、我们的网站和NASA应用程序上直播。 通过访问阿尔忒弥斯1号博客，关注猎户座的旅程。 图片来源：NASA