ESA BR-323 LISA Pathfinder

Albert Einstein’s general theory of relativity predicted the existence of ripples in the fabric of space–time called gravitational waves, but so far no experiment has been able to detect them directly. Space offers many advantages in this search, and ESA’s LISA Pathfinder mission is a technology demonstrator that will pave the way for future spaceborne gravitational-wave observatories by testing the necessary instrumentation for the first time in that environment. Read online