229K views · 1.7K reactions | Thousands of people, for almost two decades, accomplished the construction of the telescope element of the largest space telescope ever created. The optical and science segment of the James Webb Space Telescope stands complete in one of the largest cleanrooms in the world, located at NASA's Goddard Space Flight Center. More: www.nasa.gov/Webb | NASA’s Goddard Space Flight Center | Facebook

24K views · 73 reactions | NASA’s James Webb Space Telescope is heading to space to explore the universe as no telescope has before. Webb has both cameras and spectrographs -- instruments that take light apart to reveal the chemical makeup of cosmic objects. Dr. Thomas Zurbuchen and Dr. Ellen Stofan, of the National Air and Space Museum, talked about the upcoming launch and what we'll see with Webb. | NASA's James Webb Space Telescope | Facebook