NASA's James Webb Space Telescope has successfully deployed its 70-foot sunshield

The James Webb Space Telescope has completed one of the most challenging tasks involved in its mission to probe the depths of our universe. This week, NASA successfully deployed JWST's 70-foot sunshield. The system is essential to the telescope's operation. It will ensure its instruments don't get hotter than 380 degrees Fahrenheit so that they're cold enough to see the infrared light that Webb is designed to track. This is it: we've just wrapped up one of the most challenging steps of our journ...