The biggest telescope lens
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The mirror is built from many polished and assembled pieces.Made from 7 beryllium segments, as dimension is 7 times larger than Hubble's mirror, and has 25 a square meters area.
This way of building a mirror so large, has been approach because if being built on Earth, it doesn't fit into a spacecraft to be transported into space. Every piece can move individually, and if there appears any problems, the scientist can make rectifications in space.
The material from which is built, it allows to resist to higher temperatures than oldest ones and has the capacity to retrieve images 9 times faster. In the same time if we calculate the weight of this mirror, at one meter to one proportion, it has half from oldest ones weight.
Like a photo camera, as the mirror is higher the far can see. Based on this, surely we can do new discoveries about space taking in consideration the distance that can reach.
The JWST satellite which will hold the mirror, will be launched in year 2013.
John
2007-10-25 10:45:23
Jesus, that's enormous. 
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