After two decades of engineering, over $10 billion, and a series of delays, the most powerful telescope built by NASA is finally scheduled to launch on Saturday. The James Webb Space Telescope was built to provide a fresh look at the universe by detecting light that is invisible to the human eye and to reveal new information about the universe's oldest stars and galaxies. Lou Strolger, observatory scientist and deputy head of instruments division, space telescope, joins Cheddar News.
