Автор Salo, 16.02.2012 10:25:55
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Цитата Chris B - NSF @NASASpaceflight 3 мин. назадThe booster started a fire on the hillside.https://video.twimg.com/ext_tw_video/1301237245152768001/pu/vid/1200x652/bVvwYAtDXIQY7q26.mp4 (0:13)
Цитата NASA @NASA 15 мин. назад3...2...1... fire. The @NASA_SLS rocket booster test is in progress.https://video.twimg.com/amplify_video/1301234923949314048/vid/1280x720/ULSEhKebN2KsrB31.mp4 (0:29)
Цитата NASA @NASA 5 мин. назадToday's test is not only about power -- it's also about the technical innovations that will help us explore the Moon and beyond. Our engineers and technicians will continue to analyze the data and use it to improve future rocket boosters on future #Artemis missions:https://video.twimg.com/amplify_video/1301236323215314944/vid/1280x720/sCMJwEdDqV3JJ0ql.mp4 (0:31)
ЦитатаSpace Launch System Rocket Booster Test NASAТрансляция началась 28 минут назад
ЦитатаSept. 2, 2020NASA Conducts SLS Booster Test for Future Artemis MissionsAs NASA begins assembling the boosters for the Space Launch System (SLS) rocket that will power the first Artemis mission to the Moon, teams in Utah are evaluating materials and processes to improve rocket boosters for use on missions after Artemis III.NASA completed a full-scale booster test for NASA's Space Launch System rocket in Promontory, Utah, on Sept. 2. NASA and Northrop Grumman, the SLS booster lead contractor, will use data from the test to evaluate the motor's performance using potential new materials and processes that can be incorporated into future boosters. NASA has a contract with Northrop Grumman to build boosters for future rocket flights."Landing the first woman and the next man on the Moon is just the beginning of NASA's Artemis Program," said NASA Administrator Jim Bridenstine. "The SLS flight support booster firing is a crucial part of sustaining missions to the Moon. NASA's goal is to take what we learn living and working on the Moon and use it to send humans on the first missions to Mars."NASA and Northrop Grumman successfully complete the Flight Support Booster-1 (FSB-1) test in Promontory, Utah, on Sept. 2. The full-scale booster firing was conducted with new materials and processes that may be used for NASA's Space Launch System (SLS) rocket boosters. NASA and Northrop Grumman, the SLS boosters lead contractor, will use data from the test to evaluate the motor's performance using potential new materials and processes for Artemis missions beyond the initial Moon landing in 2024.The SLS boosters are the largest, most powerful boosters ever built for flight. The two boosters on the rocket provide more than 75% of the thrust needed to launch NASA's future deep space missions through NASA's Artemis lunar program. Northrop Grumman is the lead contractor for the SLS boosters.For a little over two minutes -- the same amount of time that the boosters power the SLS rocket during liftoff and flight for each Artemis mission -- the five-segment flight support booster fired in the Utah desert, producing more than 3 million pounds of thrust.NASA and Northrop Grumman have previously completed three development motor tests and two qualification motor tests. Today's test, called Flight Support Booster-1 (FSB-1), builds on prior tests with the introduction of propellant ingredients from new suppliers for boosters on SLS rockets to support flights after Artemis III."NASA is simultaneously making progress on assembling and manufacturing the solid rocket boosters for the first three Artemis missions and looking ahead toward missions beyond the initial Moon landing," said John Honeycutt, the SLS Program Manager at NASA's Marshall Space Flight Center in Huntsville, Alabama. "Today marks the first flight support booster test to confirm the rocket motor's performance using potential new materials for Artemis IV and beyond."The SLS boosters are the largest, most powerful boosters ever built for flight. The flight support booster used in the test is the same size and has the same power as the flight version of a five-segment solid rocket booster used for NASA's Artemis missions. The Artemis I boosters are currently being prepared for launch at NASA's Kennedy Space Center in Florida."This flight support booster test is the first motor firing NASA and Northrop Grumman have completed since qualifying the booster design for the Space Launch System rocket," said Bruce Tiller, SLS Boosters Office Manager at Marshall. "Full-scale booster tests are rare, so NASA tries to test multiple objectives at one time so we are highly confident that any changes we make to the boosters will still enable them to perform as expected on launch day."NASA is working to land the first woman and next man on the Moon by 2024. The SLS rocket, Orion spacecraft, Gateway, and human landing system are part of NASA's backbone for deep space exploration. The Artemis program is the next step in human space exploration as part of America's broader Moon to Mars exploration approach. Experience gained at the Moon will enable humanity's next giant leap: sending humans to Mars. SLS is the only rocket that can send Orion, astronauts and supplies to the Moon in a single mission.Last Updated: Sept. 2, 2020Editor: Jennifer Harbaugh
ЦитатаНАСА провело испытание разгонного блока ракеты для полетов к Луне и Марсу23:43 02.09.2020 (обновлено: 23:45 02.09.2020)ВАШИНГТОН, 2 сен - РИА Новости. НАСА в среду провело успешное полномасштабное испытание разгонного блока ракеты-носителя SLS (Space Launch System), на которой планируется отправлять корабль Orion на Луну и Марс.Трансляция испытания велась на сайте НАСА.Двигатель укрепленного горизонтально на полигоне в штате Юта разгонного блока проработал 120 секунд. Задачей испытания было проверить работу двигателя, качество использованных в ускорителе материалов, оценить потенциал для новых материалов и других доработок.Ракета будет оснащена двумя разгонными блоками, которые обеспечивают три четверти тяги для выхода на орбиту, где потом отделяются.SLS строится для запуска создаваемого нового американского космического корабля Orion для отправки астронавтов на Луну в 2024 году и последующих полетов в далекий космос, в том числе на Марс. В декабре 2019 года сообщалось, что НАСА завершило сборку центрального блока ракеты-носителя SLS.Ввод в эксплуатацию ракеты многократно откладывался. Первый пуск планировался на 2019 год, затем был перенесен на июнь 2020 года. В соответствии с этим графиком предполагалось, что первый запуск ракеты с миссией "Артемис-1" состоится в 2021 году.
ЦитатаNorthrop Grumman Successfully Tests NASA's Space Launch System Booster for Artemis MissionsWorld's largest human-rated twin solid rocket boosters will provide more than 75 percent of thrust required to launch NASA's super heavy-lift SLS rocketSeptember 02, 2020PROMONTORY, Utah - Sept. 2, 2020 - NASA and Northrop Grumman Corporation (NYSE: NOC) have successfully conducted a full-scale static fire test of NASA's Space Launch System (SLS) rocket motor, known as Flight Support Booster (FSB-1), in Promontory.NASA and Northrop Grumman successfully conducted a full-scale static fire test of NASA's Space Launch System (SLS) rocket motor, known as Flight Support Booster (FSB-1), in Promontory, Utah, on Sep. 2. During the test, the 154-foot-long, five-segment rocket motor fired for just over two minutes, producing 3.6 million pounds of thrust. Two SLS boosters will provide more than 75 percent of the initial thrust for an SLS launch for Artemis missions.During the test, the 154-foot-long, five-segment rocket motor fired for just over two minutes, producing 3.6 million pounds of thrust. Two SLS boosters will provide more than 75 percent of the initial thrust for an SLS launch."NASA's Artemis missions, powered by Northrop Grumman boosters, will push the boundaries of what is possible for human exploration in space," said Charlie Precourt, vice president, propulsion systems, Northrop Grumman. "We have built, qualified and delivered flight hardware for Artemis I, and we are committed to the continuous improvement and testing of our products to provide the best solid propulsion to fuel NASA's missions to the moon and beyond."The company developed this motor based on the flight-proven design of the space shuttle boosters with enhanced technologies and updated materials to support NASA's most powerful rocket to date. The new five-segment booster configuration provides 20 percent greater average thrust than the shuttle boosters, aiding in the SLS rocket's ability to deliver greater mass and volume by generating greater departure energy than any existing launch vehicle.Prior to this test, NASA and Northrop Grumman conducted a series of ground tests beginning in 2010 to satisfy requirements for certification of the booster. FSB-1 evaluated ballistic parameters and performance of propellant materials from new sources, an upgrade to enable the booster to meet the high performance demands of SLS.Northrop Grumman has delivered the first set of rocket motor segments for Artemis I boosters. The second set of motors for the Artemis II boosters are nearly complete, and rocket motor segments for Artemis III are in production. Materials evaluated in today's test could be used in missions following Artemis III.From the first lunar lander to the space shuttle boosters, to supplying the International Space Station with vital cargo, Northrop Grumman has pioneered new products and ideas that have been put into orbit, on the moon, and in deep space for more than 50 years. As a major contributor to NASA's Artemis program, the company is building on its mission heritage with new innovations to enable NASA to return humans to the moon, with the ultimate goal of human exploration of Mars.Northrop Grumman solves the toughest problems in space, aeronautics, defense and cyberspace to meet the ever evolving needs of our customers worldwide. Our 90,000 employees define possible every day using science, technology and engineering to create and deliver advanced systems, products and services.
ЦитатаNASA Tests Space Launch System Rocket Booster for Artemis Missions NASA2 сент. 2020 г.
ЦитатаНеопределенность с ракетой усложняет подготовку новой миссии НАСА Europa ClipperВажная новая миссия НАСА к водному спутнику Юпитера Европе нуждается в ракете - и как можно скорее, говорят участники проекта. Зонд Europa Clipper планируется отправить в космос в 2024 г. для изучения спутника Юпитера, под ледяной корой которого, вероятно, находится гигантский океан жидкой воды. Зонд Clipper произведет оценку обитаемости этого подповерхностного океана, а также решит серию других задач, включая поиски наиболее перспективных мест для посадки спускаемых аппаратов, которые могут быть отправлены к Европе в будущем. Конгресс США давно постановил, что запуск аппарата Clipper произойдет при помощи гигантской ракеты Space Launch System (SLS), которую НАСА разрабатывает для доставки астронавтов к Луне и другим далеким объектам. Однако разработка ракеты SLS столкнулась с задержками и превышениями бюджета, в результате чего по состоянию на сегодняшний день запуск этой мегаракеты планируется не раньше, чем на конец 2021 г. Учитывая эти задержки в разработке ракеты, а также тот факт, что разработка ракеты SLS тесно связана с предстоящим запуском пилотируемой лунной миссии НАСА Artemis («Артемида»), который намечен на 2024 г., участники проекта Clipper сомневаются, что их аппарат удастся запустить при помощи ракеты SLS вовремя. На эту проблему обратили внимание члены Палаты представителей США. В предложенном Палатой бюджете НАСА на 2021 г., который был опубликован в июле, запуск миссии Clipper откладывается на 2025 г., а спускаемого аппарата Europa - на 2027 г. Согласно предложению, обе миссии должны быть запущены на борту ракеты SLS «при условии доступности» ракеты. Такая формулировка оставляет открытой возможность использования коммерческой альтернативы - например, ракеты Falcon Heavy компании SpaceX, которая близка по мощности к ракете SLS (хотя мощность ракеты SLS остается чисто гипотетической, до тех пор пока ракета не совершит свой первый полет). В настоящее время команда миссии Clipper всерьез обеспокоена неопределенностью, связанной с ракетой для запуска, и надеется, что эта ситуация будет разрешена до конца текущего календарного года, пишет AstroNews. А.Ж.
Цитата: Former NASA boss Charles Bolden'SLS will go away': Boeing's Space Launch System rocket could face trouble though, regardless of who is in office in 2021, he predicts. "SLS will go away. It could go away during a Biden administration or a next Trump administration ... because at some point commercial entities are going to catch up," he said. "They are really going to build a heavy lift launch vehicle sort of like SLS that they will be able to fly for a much cheaper price than NASA can do SLS. That's just the way it works."
Цитата: Former NASA boss Charles BoldenSOME DAY, IT WILL GO AWAY --Charlie Bolden says the quiet part out loud: SLS rocket will go away"At some point, commercial entities are going to catch up."ERIC BERGER - 9/11/2020, 5:44 PM Charlie Bolden, a four-time astronaut, served as NASA administrator from mid-2009 through early 2017. During that time, he oversaw the creation and initial development of the agency's large Space Launch System rocket.Although some NASA officials such as then-Deputy Director Lori Garver were wary of the rocket's costs--about $20 billion has now been poured into development of a launch vehicle based on existing technology--Bolden remained a defender of the large rocket, calling it a lynchpin of the agency's plans to send humans beyond low-Earth orbit, perhaps to the Moon or Mars. He also dismissed the efforts of commercial space companies like SpaceX to build comparable technology.When I sat down with Bolden for an interview in 2014 at Johnson Space Center, I asked why NASA was investing so much in the SLS rocket when SpaceX was using its own funds to develop the lower-cost Falcon Heavy rocket. His response at the time: "Let's be very honest. We don't have a commercially available heavy-lift vehicle. The Falcon 9 Heavy may some day come about. It's on the drawing board right now. SLS is real."Two years later, in 2016, Bolden said he still did not believe commercial companies were up to the task. "If you talk about launch vehicles, we believe our responsibility to the nation is to take care of things that normal people cannot do, or don't want to do, like large launch vehicles," Bolden said. "I'm not a big fan of commercial investment in large launch vehicles just yet."Since that time, a lot has changed. In February 2018, SpaceX launched the Falcon Heavy rocket for the first time. It has since flown successfully two more times, and it will play a role in NASA's future exploration plans. Meanwhile, the SLS rocket, originally due to launch in 2017, is now delayed until at least the end of 2021.As a result of this, Bolden appears to have changed his mind. In an interview with Politico published Friday morning in the publication's Space newsletter, Bolden was asked what might happen during the next four years."SLS will go away," he said. "It could go away during a Biden administration or a next Trump administration... because at some point commercial entities are going to catch up. They are really going to build a heavy lift launch vehicle sort of like SLS that they will be able to fly for a much cheaper price than NASA can do SLS. That's just the way it works."Bolden remains a popular and influential voice in the space community, but he no longer has a direct say in US space policy. Perhaps because he no longer has to answer to Congress for NASA budgets, he is also free to speak his mind. In any case, his comments reflect the general sentiment in the space community--at least outside of the traditional contractors like Boeing and Northrop Grumman who directly benefit from SLS development--that the SLS rocket will eventually go away.View of SLS outside the bubbleThe Falcon Heavy is not as capable as the SLS rocket, but its success has clearly demonstrated that private companies can build large, powerful rockets. Moreover, it's not just SpaceX, but also Blue Origin with its New Glenn booster, that seeks to build heavy lift rockets with private money. And although they are rivals, SpaceX's Elon Musk and Blue Origin's Jeff Bezos both agree that rockets need to be capable of reuse to be viable. The SLS will cost about $2 billion to launch and then fall into the ocean.If you're wondering what commercial space proponents really think about the SLS rocket due to its cost and expendability, it's this, which comes from a senior official at a new space company:"If Santa Claus arrived, and said, 'I have good news. It now works and you can launch tomorrow. Everything's done. You're going to have a launch tomorrow.' ... It still isn't getting us to the Moon. Even if they achieve everything they aim for, it still does not get people to the Moon. It certainly does not get a base on the Moon and absolutely doesn't get humans to Mars."When Congress conceived of the Space Launch System rocket in 2010 and directed NASA to build it, they were making two bets. First, they bet the new space companies such as SpaceX would fail. This was a reasonable bet back then, as SpaceX had lost most of the rockets it had tried to launch into space. Second, they bet that traditional companies like Boeing would be better at building big rockets.The congressional lawmakers who created SLS--it began with Florida Senator Bill Nelson and Texas Senator Kay Bailey Hutchison, and they were soon joined by Alabama Senator Richard Shelby--lost both of those bets. So now, NASA is building a large, expendable rocket that has cost taxpayers tens of billions of dollars. Congress remains as committed as ever, both in budgets and public statements of support. However, the more that new rockets fly, the more difficult this support will be to maintain.Ironically, NASA and the SLS prime contractor Boeing are no longer competing with the Falcon Heavy. SpaceX beat them two and a half years ago. Rather, NASA is competing with SpaceX's next rocket, the Super Heavy booster that will loft Starship into orbit. SpaceX has not even built a single segment of its Super Heavy rocket--which is larger than SLS, more powerful, vastly cheaper, and reusable--but it's possible that the vehicle makes an orbital launch before the decade-old SLS in 2021.
Цитата Jeff Foust @jeff_foust 3 ч. назадNASA's Marshall Smith says he now estimates late October or early November for SLS Green Run static fire test, accounting for delays caused by hurricanes threatening the Stennis Space Center. #LEAG2020
ЦитатаEngineers Complete 5th Green Run Test of Space Launch System Core Stage NASA Stennis14 сент. 2020 г.
ЦитатаNASA Completes Fifth Green Run Test for First Artemis Moon RocketKathryn HambletonPosted Sep 14, 2020 at 6:13 pmEngineers have completed the fifth of eight Green Run tests on the core stage of NASA's new Space Launch System (SLS) rocket, continuing progress toward a hot fire test this fall. Operators evaluated the stage's thrust vector control system on the historic B-2 Test Stand at NASA's Stennis Space Center near Bay St. Louis, Miss., on Sept. 13. The test provided critical verification of the control system and its related hydraulics as operators moved the stage's four RS-25 engines as they must move during flight to steer the rocket and maintain a proper trajectory. The stage now is set for two more tests - a simulated countdown demonstration and wet dress rehearsal - directly leading to the hot fire of all four RS-25 engines, as during an actual flight.In the countdown demonstration, engineers will simulate the launch countdown and procedures to validate the established timeline and sequence of events. In the wet dress rehearsal, engineers will conduct another countdown exercise and actually load, control and drain more than 700,000 gallons of cryogenic propellants to ensure all is set for the final test of the Green Run series. The concluding test will activate all stage systems and fire the four RS-25 engines to generate the same combined 1.6 million pounds of thrust that will help launch the SLS rocket when it flies on the Artemis I mission.
ЦитатаNASA started building ML-1 before they had a finished design for it, which created delays which cost taxpayers 927 million dollars.
Цитата Stephen Clark @StephenClark1 2 ч. назадIn a Senate hearing, NASA Administrator says the "green run" hotfire test of the first SLS core stage is now planned in November at the Stennis Space Center.
Цитата Jim Bridenstine @JimBridenstine 44 мин. назадMore progress on @NASA_SLS Green Run Hot Fire! @NASA_Stennis teams completed the sixth test of the Green Run test series - the simulated countdown - on Sunday, validating the stage for the sequence of events leading up to an #Artemis launch. Read: https://go.nasa.gov/3njtFUO
ЦитатаOct. 5, 2020NASA Moon Rocket Stage Passes Simulated Countdown Test Back to GalleryEngineers at NASA's Stennis Space Center near Bay St. Louis, Mississippi, completed a simulated launch countdown sequence on Oct. 5 for the sixth test of the eight-part core stage Green Run test series for NASA's Space Launch System (SLS) rocket. The SLS core stage being tested is the largest rocket stage NASA has ever produced and will be the stage that helps deliver the Artemis I mission to space. The 212-foot-tall core stage has two huge propellant tanks that collectively hold more than 733,000 gallons of propellant to fuel four RS-25 engines at the bottom of the stage. The rocket stage also has three flight computers and avionics systems to help launch and guide NASA's Artemis missions to the Moon. During the simulated countdown, NASA engineers and technicians, along with prime contractors Boeing, and Aerojet Rocketdyne, monitored the stage to validate the timeline and sequence of events leading up to the test, which is similar to the countdown for the Artemis I launch. The countdown sequence for an actual Artemis launch begins roughly two days prior to liftoff. In addition to all the procedures leading up to the ignition of the four RS-25 engines, the SLS core stage requires about six hours to fully load fuel into the two liquid propellant tanks. The simulated countdown sequence test at Stennis began at the 48-hour mark as if the stage was first powered up before liftoff. Engineers then skipped ahead in the sequence to monitor the stage and procedures of the stage 10 minutes before the hot fire. The simulated countdown sequence is one of the final tests of the SLS Green Run campaign. The series of tests is designed to gradually bring the rocket stage and all its systems to life for the first time. The Green Run test campaign will validate the SLS core stage design and ensure it's ready for the first and future Artemis missions beyond Earth's orbit to the Moon through the agency's Artemis program.NASA is working to land the first woman and the next man on the Moon by 2024. SLS and Orion, along with the human landing system and the Gateway in orbit around the Moon, are NASA's backbone for deep space exploration. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. (NASA image)Last Updated: Oct. 5, 2020Editor: Jennifer Harbaugh
Цитата Chris B - NSF @NASASpaceflight 17 ч. назадWhile we're talking about RS-25Ds, here's the assignments:Artemis-1 (And the Green Run): E2060 has joined forces with stablemate E2058 from STS-133 (Discovery) along with E2045 and E2056 which both flew on the final Shuttle mission, STS-135 (Atlantis).https://nasaspaceflight.com/2019/11/four-rs-25-installed-sls-core-stage/...
Цитата Jeff Foust @jeff_foust 9 мин. назадIn a Boeing media call on the SLS, John Shannon says they're planning the wet dress rehearsal (fueling the core stage) around Oct. 30; if all goes well, proceed with the Green Run hotfire test, tentatively scheduled for Nov. 14.