Tomorrow at 10h12 paris time is an important day for me and many other engineers and scientists: http://www.cnes.fr/web/CNES-fr/9622-lancement-de-soyouz-en-guyane.php
Please cross your fingers so that 3 years of my working life don't disintegrates in the atmosphere, or in space!!
In any case, I consider this mission to be so scientifically important that (if everything goes well!) we will hear from Gaia's discoveries for many many years to come.
I personally can't wait putting the 1,000,000,000 stars catalog into Stellarium :D