NASA @NASA
UPDATE: @NASAWebb completed its Launch Readiness Review & is safe atop its Ariane 5 rocket. However, the weather in French Guiana isn’t looking good. Launch is now no earlier than Dec 25 at 7:20am ET (12:20am UTC). We’ll monitor things & keep you posted. https://t.co/94ZOj9aU6Y https://t.co/CwfdGmLn0R — PolitiTweet.org