NASA created the world's largest telescope

NASA engineers have completed the construction of the largest telescope in the world. The work of the telescope was going on for two decades. The telescope has been named James Web Space Telescope. The telescope will be operational two years later.
NASA's plan to launch a Eurasia Ariyan rocket from Guyana in France in October of 2016, with this telescope.
But before that it is working well that will be tested.
This experimental activity will begin within a few weeks of the Space Center in Maryland.
Senior project scientist John Mather said, "Today we have completed the construction of our telescope and it is working to prove that it is working correctly." Earlier, the biggest telescope for 26 years was the Hubble Space Telescope. James is going to be the Web's successor. I: Mather said, "It's so strong, it's more powerful than the Hubble telescope."