Kill the Hubble the James Webb Space Telescope was launched in 2018

　　According to foreign media reports, has now entered the James Webb space telescope mirror testing phase, all 18 side mirrors have all been completed, optical engineers are testing the mirror, here's Webb telescope eyes. Now Hubble has been in orbit for as long as 25 years of service, during which sent back stunning images of the universe, the Webb telescope to replace Hubble was conducting a number of rounds of testing, launched in 2018. First half of smart hardware summary Big Brothers

　　Weber telescope is United States NASA, and European Space Council and Canada NASA of cooperation project, recently completed has part test, according to United States NASA of announcement, integrated science instrument module has into last of delivered test program, from Northrop-grid Lu Mann company design of main mirror back board bracket structure has made has larger of progress, European Space Council also show has Weber telescope of mirror test stage photos.

　　In order to replace the Hubble Space Telescope, the Webb telescope uses a larger lens diameter, using composite mirror, consisting of 18 hexagonal mirror lighter inside, each mirror has a micro-motor drive. Unlike the Hubble space telescope is, which work in the near-infrared, ultraviolet and visible wavelengths, and the Webb telescope at near-infrared wavelengths. And the second Lagrange point, not near-Earth orbits of the Hubble telescope.

　　The second Lagrange point 1.5 million kilometers from Earth, so once the telescope failed, may not be able to fix, unlike the Hubble space telescope that can repair the space shuttle. So much size and orbital altitude, the Webb telescope's launch using Europe's Ariane v rocket, which is the largest space telescope ever, after shading devices expand all equivalent to the size of Boeing 737, undoubtedly is the most largest and most complex space telescopes.

　　According to United States NASA schedule, full size the Webb telescope test will be conducted between 2016 and 2017, expand all visor devices will reach the size of a tennis court, and accuracy is very high, the error shall not exceed a few centimetres. There is a huge vacuum in the Johnson Space Center, engineers tested here the Webb telescope's optical components, including tests of the Interferometer system, a heat sensor test, which can help the telescope quality images.