NASA Completes World's Most Expensive Telescope After 2 Decades

The Hubble Space Telescope has done a great job so far by giving humanity extraordinary glimpses of the universe, but scientists at NASA have now come up with the largest and most expensive telescope the world has ever seen. The James Webb Space Telescope, abbreviated JWST, will now hold the reins and act as a major tool for unraveling the cover from the mysteries of the universe.