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好消息Senate saves the James Webb Space Telescope

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The 2012 fiscal year appropriation bill, marked up today by the Senate, allows for continued funding of the James Webb Space Telescope and support up to a launch in 2018! Yes, it looks like this bird is going to fly.
The James Webb Space Telescope will be the premier observatory of the next decade, serving thousands of astronomers worldwide. It will study every phase in the history of our Universe, ranging from the first luminous glows after the Big Bang, to the formation of solar systems capable of supporting life on planets like Earth, to the evolution of our own Solar System. JWST will be a large infrared telescope with a 6.5-meter primary mirror.
Thanks to everyone who contacted their representatives and expressed their support of the JWST, to all the websites out there that made it particularly simple to do so, and of course to all the state representatives who stood behind the program and didn’t allow it to get mothballed. The space science community thanks you and the current and future generations of astronomers, physicists, cosmologists and explorers thank you.
“In a spending bill that has less to spend, we naturally focus on the cuts and the things we can’t do. But I’d like to focus on what we can do. The bill invests more than $12 billion in scientific research and high impact research and technology development, to create new products and new jobs for the future," said CJS Subcommittee Chairwoman, Barbara Mikulski
In addition to continued funding for the telescope the 2012 bill also allots the National Aeronautics and Space Administration $17.9 billion (a reduction of $509 million or 2.8 percent from the 2011 enacted level) and preserves NASA’s portfolio balanced among science, aeronautics, technology and human space flight investments, including the Orion Multipurpose Crew Vehicle, the heavy lift Space Launch System, and commercial crew development.
In this tighter economy, all of the agencies funded under the bill are also called on to be better stewards of taxpayers’ dollars, and waste and overspending will be much more closely monitored.
http://appropriations.senate.gov/news.cfm?method=news.view&id=d396ebde-ec78-470d-b46b-b4d49c8e565e


1楼2011-09-18 03:18回复
    威武!


    3楼2011-09-19 15:06
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      不过发射时间怎么到2018年了。。。囧。。。


      4楼2011-09-19 15:06
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        补张图~~~JWST~吧里那张在我这儿好像是挂掉了。。。



        6楼2011-09-21 19:31
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          期待。


          IP属地:甘肃来自手机贴吧7楼2011-09-22 20:36
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            杰姆斯·韦伯望远镜完成mirror-coating里程碑
            望远镜的镜子涂有极薄的一层金,选择的能力,正确反映红外光线从镜子在天文台的科学仪器。涂层使韦伯望远镜”红外眼睛”观察非常微弱的天体的红外光源。韦伯的任务是观察宇宙中遥远的物体。
            “所有的镜子涂层的时间表是另一个重要的成功故事,韦伯望远镜的镜子,”费因伯格说,美国宇航局的光学望远镜元素经理韦伯望远镜在局哥达德太空飞行中心的绿地,马里兰州。”这些涂料容易满足技术规范,确保更加科学发现潜在的韦伯望远镜。”
            韦伯望远镜有21个镜子,18段一起工作作为一个大21.3-foot(6.5-meter)主镜。镜子段采用铍,而被选定为其刚度,重量轻,稳定在低温温度。裸铍不反射的近红外光,所以每个镜子涂有大约0.12盎司黄金。
            最后全尺寸(4.9-foot/1.5米)六铍主镜段,飞上天文台最近被涂层,完成这一阶段的镜生产。
            韦伯望远镜是世界的下一代空间天文台的继承者和哈伯太空望远镜。最强大的望远镜建造,韦伯望远镜将提供第一图像的星系都成立,并探讨围绕遥远恒星旋转的行星。它是一个联合项目,美国宇航局,欧洲航天局和加拿大空间局。
            反射镜的制造始于八年前的空白作出了铍,非常坚硬的金属,保持其形状在极端寒冷的空间望远镜将轨道。镜子涂层始于六月2010。几个较小的反射望远镜,三镜和细转向镜子,被包覆在2010。次镜完成了今年早些时候。
            量子涂料有限公司(qci)是根据合同球航天和诺斯洛普格。qci建造了一个新的涂层设备及洁净室外套大段。qci发达的黄金涂层的性能,在某些领域,如均匀,低温循环,耐久性,应力与反射,在两年的努力在涂装前第一次飞行的镜子。
            在这个过程中,金被加热到它的液体,超过2500华氏度(1371摄氏度),和蒸发到镜子的光学表面。该涂料是120纳米,厚度约一百万分之一英寸或200倍小于人类头发。
            “我们面临着许多技术挑战的韦伯镜面涂层程序,说:”伊恩史蒂文森,主任量子涂层涂层。”其中最艰巨的是,所有飞行硬件运行必须执行,没有一个单一的失败。”
            镜部分最近被运到球航天博尔德,科罗拉多,在驱动器连接,帮助移动的镜子。从那里,这段旅行的X射线和校准设施美国宇航局太空飞行中心的亨茨维尔,阿拉巴马州,进行最后的测试时,他们将冷冻至-400华氏度(摄氏240度)。最后一批六飞行镜应测试完成今年年底。


            9楼2011-10-07 18:06
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              wiki上詹姆斯韦伯计划条目消失,还以为真取消了


              IP属地:美国10楼2011-10-11 11:57
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