The Vega launcher, carrying LISA Pathfinder, takes off from #Kourou at 04:04 GMT in French Guyana. The LISA Pathfinder is a probe that will test technologies required for the gravitational wave observatory, which is scheduled for launch in the year 2034 | December 3, 2015 | 📷: Stephane Corvaja for europeanspaceagency (ESA) via #GettyImages