The James Webb telescope is fully deployed, there were so many moving parts and steps involved that it is simply amazing that this succeeded. It is now about 3/4 of the way to it's final orbit. There will still be months of calibrating before all the instruments are fully ready to do science but all the dangerous steps, things that were likely to go wrong but didn't, are complete. I can't wait for the calibrations to be completed and the telescope to start returning data. This telescope has the ability to look back to the very earliest moments of the universes existence, and thus either prove or disprove the big bang theory. I'm betting at the very least it's going to result in some substantial modifications of the understanding of how our universe came into existence. It also has the capability of doing spectroscopic analysis of the atmospheres of some exo-planets and may thus reveal the presence of extraterrestrial life. I thought it's chances of a successful deployment rather remote but it made it through that phase.