www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

US EUROPE AFRICA ASIA 中文
World / US and Canada

NASA awards space station cargo contracts to 3 private companies

(Xinhua) Updated: 2016-01-15 10:01

NASA awards space station cargo contracts to 3 private companies

Sierra Nevada Corporation engineers and technicians prepare the firm's Dream Chaser engineering test vehicle for tow tests on a taxiway at NASA's Dryden Flight Research Center in Palmdale, California on June 27, 2013. [Photo/Agencies]

WASHINGTON - US space agency NASA announced Thursday that it has awarded the second round of commercial contracts to resupply the International Space Station (ISS) to three private spaceflight companies Orbital ATK, Sierra Nevada and SpaceX.

Every one of these companies gets at least six flights to deliver cargo to the space station, which will begin in late 2019 and extend through 2024, NASA said.

Orbital ATK of Virginia and SpaceX of California, the winners of the first round of NASA's Commercial Resupply Services contracts, have already used their own space capsules to send supplies several times to the orbiting lab about 400 kilometers above Earth.

The only new face is Colorado-based Sierra Nevada, which has been developing a mini-shuttle called Dream Chaser that is designed to launch vertically on a rocket and land horizontally on conventional runways.

NASA said a third provider assures access to the space station after two launch accidents by Orbital ATK and SpaceX, in late 2014 and this past summer, respectively.

"Awarding multiple contracts provides more options and reduces risk through a variety of launch options and mission types, providing the ISS program a robust portfolio of cargo services that will be necessary to maximize the utility of the station," NASA said in a statement.

While the maximum potential value of all contracts is about $14 billion, NASA said it will order missions, as needed, and the total prices paid under the contract will depend on which mission types are ordered.

"We plan to order services based on our current estimates of station needs, which provides NASA important flexibility to maximize the use of the space station," said Kirk Shireman, NASA's ISS Program manager.

"We look forward to beginning work with these new contractors to understand the details of the services that they have proposed and understand the details of how these services will benefit ISS."

Since the Obama administration outsourced space station resupply missions, commercial carriers have transported 35,000 of pounds of cargo there, NASA Administrator Charles Bolden wrote in a blog post Thursday.

Besides, over 1,000 US companies are now involved in NASA's commercial space initiatives and about 80 percent of the agency's activities are carried out by its partners in industry and at America's academic institutions, he said.

"Despite critics who may have said this was a pipe dream just five short years ago, we continue to transform the way NASA does business and as a result, today we're able to mark another significant milestone that will carry President (Barack) Obama's (commercial space) vision further into the future," he wrote.

Trudeau visits Sina Weibo
May gets little gasp as EU extends deadline for sufficient progress in Brexit talks
Ethiopian FM urges strengthened Ethiopia-China ties
Yemen's ex-president Saleh, relatives killed by Houthis
Most Popular
Hot Topics

...
主站蜘蛛池模板: 国产精品情侣久久婷婷文字 | 亚洲视频免费一区 | 永久精品免费影院在线观看网站 | 国产精品免费久久久免费 | 国产亚洲精品久久久久久午夜 | 456主播喷水在线观看 | 免费又黄又爽又猛大片午夜 | 日韩一级一欧美一级国产 | 精品一区二区三区的国产在线观看 | a级片在线观看免费 | dy888午夜国产午夜精品 | 亚洲国产精品一区二区三区 | 久久久免费精品视频 | 在线不卡一区 | 久久这里只有精品视频99 | 国产精品久久视频 | 一级欧美 | 国产免费一级片 | 日韩欧美一级毛片在线 | 久久亚洲精品国产精品777777 | 国产一区二区三区在线视频 | 99视频在线精品免费观看18 | 国产高清精品在线 | 久久久久久综合一区中文字幕 | 青青视频国产依人在线 | 国产日产久久 | a级精品九九九大片免费看 a级毛片免费观看网站 | 欧美精品一区二区三区视频 | 成人不卡视频 | 国产三级网站在线观看 | 欧美一区二区三区久久综 | 成人在线黄色 | a高清免费毛片久久 | 免费看一毛一级毛片视频 | 亚洲成人高清在线观看 | 草草影院ccyycom浮力影院 | 五月六月伊人狠狠丁香网 | 91成年人 | 美女叉开腿让男人捅 | 日韩欧美亚洲视频 | 中文字幕一区视频一线 |