世界第一架行星際太陽能太空帆船 Ikaros 航行傳播CG影象
西元2010年03月13日
日本發射太陽帆飛船 成功展開長14米的帆
2010年06月12日13:03
來源：中國新聞網
圖為“Ikaros”號上攝像頭拍攝的該船太空展帆情景
據日本共同社網站報道，日本宇宙航空研究開發機構11日稱，已確認“Ikaros”太陽帆飛船的帆成功展開，並公開了飛船上攝像頭拍下的圖像。該飛船在太空中像船帆一樣展開薄膜，以太陽光的微小壓力作為前進動力。
報道指出，“Ikaros”5月同金星探測器“拂曉”號一起發射后，轉動直徑1.6米、高0.8米的圓柱形機體，在離心力作用下徐徐展開薄膜帆。
本月10日，日本科研人員確認“Ikaros”在距地球約770萬公裡的太空中順利展開了邊長14米的正方形帆。外置於帆中心機體上的攝像頭拍下這一圖像並傳回了地球。
“Ikaros”的薄膜帆由可自由調節光反射的特殊材料制成，可用於加速、減速及改變方向。在接近金星之前的約半年中將反復進行太陽帆試驗，未將來開發深空探測器積累經驗。 http://scitech.people.com.cn/BIG5/11864128.html
空間太陽能波動力遊艇終於啟航
Space yacht powered by solar waves finally sets sail
By Daily Mail Reporter
Last updated at 5:06 PM on 11th June 2010
Japan says its kite-shaped 'space yacht', designed to float through space using only the power of the sun, has successfully set sail.
A Japanese rocket last month launched the experimental 'Ikaros' - Interplanetary Kite-craft Accelerated by Radiation of the Sun - designed to be propelled by the pressure of sunlight particles.
The technology could eventually enable space travel without fuel, as long as there is sunlight.
The device has a square, ultra-thin and flexible sail measuring 14m by 14m that is driven through space as it is pelted by solar particles
Similar to an ocean yacht pushed by wind, the device has a square, ultra-thin and flexible sail measuring 14m by 14m that will be driven through space as it is pelted by solar particles.
The sail, which was fully expanded on Thursday, is only a fraction of the thickness of a human hair and is partly coated with thin-film solar cells to generate electricity.
A statement from the Japan Aerospace Exploration Agency (JAXA)said: 'We have confirmed the full expansion of the sail and electric generation with thin film solar cells at about 7.7 million kilometres from Earth.'
JAXA will continue monitoring and studying 'navigation technology using the solar sail', it said.
The device was launched from the Tanegashima Space Centre on May 18.
This image sent back from the Ikaros spacecraft shows a portion of its solar sail being unfurled 這影像從Ikaros太空飛船傳回，顯示它部分的太陽能帆正在招展
'It is a hybrid technology of electricity and pressure', Japanese Space Agency expert Yuichi Tsuda said.
'Solar sails are the technology that realises space travel without fuel as long as we have sunlight. The availability of electricity would enable us to navigate farther and more effectively in the solar system.'
Scientists will steer the Ikaros by changing the angle at which sunlight particles bounce off the silver-coloured sail.
During a six-month mission they will head towards our sister planet Venus. If this is a success JAXA are planning further missions to the red giant Jupiter and Trojan using sails more than twice as the size of the Ikaros.
A computer graphic reveals the deployment of the sail
一電腦圖畫顯示帆的部署
The £35million Ikaros is the first use of such technology in deep space. Past experiments have limited crafts to orbits around Earth.
It's name is an acronym for Interplanetary Kite-craft Accelerated by Radiation of the Sun. It also alludes to the Greek mythic hero Icarus who flew too close to the Sun and fell into the sea.
'Unlike the mythical Icarus, this Ikaros will not crash,' Mr Tsuda said.
Japan has become a major player in the space industry in recent years. In 2008 it installed a £1billion laboratory on board the International Space Station.
The space agency has proposed that the Japanese government send a wheeled robot to the moon in five years and build the world's first lunar base by 2020.
Under the plan, the robot's tasks would include setting up an observation device, gathering geological samples and sending data back to Earth. The robot would also set up solar panels to generate energy.
This would cost Japan around £1billion over the next 10 years.
http://www.dailymail.co.uk/sciencetech/article-1285879/Space-yacht-powered-solar-waves-finally-sets-sail.html
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