#NASAWebb is fully deployed! 🎉
With the successful deployment & latching of our last mirror wing, that's:
50 major deployments, complete.
178 pins, released.
20+ years of work, realized.
Next to #UnfoldTheUniverse: traveling out to our orbital destination of Lagrange point 2!
✅ Secondary mirror deployed! But there's little time to pause and reflect.
Teams will ensure @NASAWebb's tripod structure is latched before beginning its final major milestone this week: full deployment of the space telescope's honeycomb-shaped primary mirror.
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