128K views · 3.5K reactions | Something HUGE is unfolding for NASA's James Webb Space Telescope. In a recent test, the spacecraft fully deployed its iconic primary mirror into the same configuration it will have in space. Why this test is key to a successful mission: https://go.nasa.gov/2JLZuTP | NASA - National Aeronautics and Space Administration | Facebook

34K views · 1.4K reactions | Video responses are IN for your questions about NASA's James Webb Space Telescope's mission to #UnfoldTheUniverse!  Join our expert Dr. Naomi Rowe-Gurney on Tumblr for an #AnswerTime about her hopes for the world's most powerful telescope, Webb's science goals, and, capabilities: https://nasa.tumblr.com/tagged/WebbAT | NASA - National Aeronautics and Space Administration | Facebook