1. <sub id="zy88n"></sub>
        1. <blockquote id="zy88n"></blockquote>
          欧美黑人又大又粗xxxxx,人人爽久久久噜人人看,扒开双腿吃奶呻吟做受视频,中国少妇人妻xxxxx,2021国产在线视频,日韩福利片午夜免费观着,特黄aaaaaaa片免费视频,亚洲综合日韩av在线

          Spotlight: SpaceX launches world's most powerful rocket, taking Tesla Roadster to Mars

          Source: Xinhua| 2018-02-07 06:35:28|Editor: ZD
          Video PlayerClose

          U.S.-FLORIDA-SPACEX-FALCON HEAVY-LAUNCH

          A SpaceX Falcon Heavy rocket lifts off from Florida's Kennedy Space Center, the United States, Feb. 6, 2018. The Falcon Heavy blasted off from the Kennedy Space Center in the U.S. State of Florida at 3:45 p.m. EST (2145 GMT), carrying something just for fun: a red Tesla Roadster belonging to SpaceX and Tesla founder Elon Musk. (Xinhua/NASA)

          WASHINGTON, Feb. 6 (Xinhua) -- The private U.S. space flight company SpaceX on Tuesday launched the world's most powerful operational rocket into space in a much-hyped demonstration mission deemed to have the potential to bring a revolution in the space industry.

          The Falcon Heavy blasted off from the Kennedy Space Center in the U.S. State of Florida at 3:45 p.m. EST (2145 GMT), carrying something just for fun: a red Tesla Roadster belonging to SpaceX and Tesla founder Elon Musk.

          So far, everything has gone as planned, with the rocket's two side boosters landing simultaneously back on ground about eight minutes after liftoff.

          Eventually, the rocket's second stage will try to place the Roadster, playing David Bowie's Space Oddity, into a Mars-adjacent orbit.

          "We estimate it'll be in that orbit for several hundred million years, maybe even in excess of a billion years," Musk told reporters during a media call.

          LOW EXPECTATIONS

          The tech billionaire has repeatedly played down expectations for the launch, saying that the mission might end in explosion.

          "This is a test mission as I said there's so much that can go wrong, so we don't want to set expectations of perfection," he said.

          "I would consider it a win if it just clears the pad and doesn't blow the pad to smithereens."

          Musk admitted that there's a chance that the rocket's second stage might not make it out of low-Earth orbit.

          That's because it will "coast" for six hours through the Van Allen radiation belt, where it may "get whacked pretty hard," he said.

          DOUBLING LIFT CAPACITY

          The Falcon Heavy is essentially three of the company's Falcon 9 rockets bolted together.

          With a total of 27 Merlin engines, it's capable of generating "more than 5 million pounds (2.3 million kg) of thrust at liftoff, equal to about eighteen 747 aircraft," according to SpaceX.

          Only the Saturn V moon rocket, last flown in 1973, delivered more payload to orbit.

          The rocket will be able to lift 64 tons into orbit, doubling the lift capacity of the next closest operational vehicle, the Delta IV Heavy, at one-third the cost, the company said.

          Jason Davis of the Planetary Society hailed the demo flight as "a huge deal, even for a spaceflight company that routinely accomplishes huge deals."

          "An operational Falcon Heavy will make SpaceX the proud owner of the most powerful rocket system since the Saturn V, and opens up yet another corner of the launch industry to serious competition," he wrote in a blog article.

          Eric Stallmer, president of the U.S. Commercial Spaceflight Federation, said the successful launch "represents a momentous milestone for SpaceX and the commercial space industry, as the first heavy lift launch vehicle developed and launched with fully private funding."

          "As we look forward to all that 2018 holds for the U.S. commercial space industry, this is an exciting way to kick off the new year," Stallmer said in a statement.

          GAME OVER FOR COMPETITORS

          For this test flight, Falcon Heavy's two side boosters are both "flight-proven." One launched the Thaicom 8 satellite in May 2016 and the other supported the International Space Station mission in July 2016.

          In order to bring reusability to a whole new level, SpaceX tried to recover all three of Falcon Heavy's first stages during the test.

          A livestream showed that the two side boosters have successfully landed back at Cape Canaveral Air Force Station.

          The fate of the middle one, which was set to land on a drone ship floating in the Atlantic Ocean, was unclear, because the video signal from the drone ship was lost.

          Rocket reusability could significantly bring down the cost of launching Falcon Heavy, thus attracting potential customers.

          "We're able to offer arguably super-heavy-lift, or nearly super-heavy-lift capability, for not much more than a Falcon 9," said Musk.

          "If we're successful in this, it is game over for all the other heavy-lift rockets."

             1 2 3 Next  

          KEY WORDS: SpaceX
          EXPLORE XINHUANET
          010020070750000000000000011100001369543131
          主站蜘蛛池模板: 久久久国产99久久国产久一| 亚洲国产成人久久一区| 亚洲欧洲日韩国内高清| 日韩在线看片中文字幕不卡| 亚洲资源在线视频| 99久久久精品国产性黑人| 久久精品视香蕉蕉er大臿蕉| 少妇人妻88久久中文字幕| 成年视频人免费网站动漫在线| 亚洲AV综合色无码国产精品四季| 超碰国产精品久久国产精品99| 亚洲码欧美码一区二区三区| 欧美日韩精品一区二区三区高清视频| 最新精品国偷自产在线下载| 欧美z0z0人禽交| 久久综合一个色综合网| 1000部拍拍拍18勿入免费视频| 国产精品99久久99久久久动漫| 久久精品国产亚洲av成人| 天堂资源最新在线| 亚洲色图欧美激情| 国产精品专区第1页| 亚洲精品日韩中文字幕| 中文字幕天天躁日日躁狠狠躁| 午夜视频免费试看| 国产精品欧美一区二区三区| 国产成人精品午夜2022| 国产乱子伦精品视频| 日韩女优中文字幕在线| 国产成人精品午夜在线观看| 日韩av无码精品人妻系列| 亚洲伊人成综合网| 特级毛片爽www免费版| 久久综合激激的五月天| 综合久久婷婷综合久久| 色窝窝无码一区二区三区色欲| 亚洲一二三区精品与老人| 日韩一区精品视频一区二区| 777米奇色狠狠俺去啦| 久久综合九色综合久99| 亚洲精品中文字幕一区二区三区 |