本帖最後由 lenlan 於 2014-12-7 15:51 編輯
LIVE 網上直播美國獵戶座太空船升空過程, 及準備升空過程.
Watch The Test Flight Launch of the Deep-Space Orion Spacecraft
http://www.iflscience.com/space/watch-test-flight-launch-deep-space-orion-spacecraft(網頁中部位置有live視窗, click play就可以)
獵戶座太空船配備逃生裝置
http://news.now.com/home/international/player?newsId=119678
https://www.facebook.com/NASA/photos/np.288938674.742768139/10152845486021772/?type=1¬if_t=notify_me
Less than 24 hours before the launch of NASA’s Orion spacecraft atop a UnitedLaunch Alliance (ULA) Delta IV Heavy rocket, the L-1 forecast has improved toand there is a 70 percent chance of favorable weather. The two concerns remainthe Flight Through Precipitation and Liftoff Wind Rules. The forecast preparedby the Spaceflight Meteorology Group at NASA’s Johnson Space Center in Houstoncontinues to be favorable for Orion’s Pacific Ocean splashdown about 4.5 hoursafter launch. The detailed weather forecast is below.
Orion’s flight test is thenext step in NASA’s journey to Mars. Orion isNASA’s new spacecraft built to carry astronauts to destinations never beforevisited by humans, including an asteroid and Mars. On this uncrewed testflight, Orion will test systems critical to crew safety, including the heatshield, parachutes, avionics and attitude control, as it travels farther intospace than any spacecraft built for humans has traveled in more than 40 years.
Liftoff is scheduled for 7:05 a.m. EST on Thursday from Space Launch Complex 37at Cape Canaveral Air Force Station, Florida. During its two-orbit flight,Orion will travel 3,600 miles in altitude and travel nearly 60,000 miles beforereturning to Earth. Orion will return through Earth’s atmosphere at speedsapproaching 20,000 mph, generating temperatures near 4,000 degrees Fahrenheiton its heat shield. The spacecraft will land approximately 600 miles off thecoast of Baja, California. Orion will be recovered by a combined NASA and U.S.Navy team that will attach it to cables that will pull it into the flooded welldeck of the USS Anchorage.
Image credit: NASA
#orion #NASA #space #journeytomars
另外, 見最尾附圖
原來2003年發射的長征2F載人火箭負重量只有 8400kg，1968年美國NASA的土星1B火箭就已經可以負重21000kg，而負責探月任務的土星五型火箭更可載重量120000kg。
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發表於 2014-12-4 17:00:12
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