eLISA will be the largest man-made structure ever - a giant laser observatory in space to probe the Dark Side of the Universe.

This trailer is not for a movie, it's not for a TV show and it's not for a computer game. This trailer is for the largest instrument ever built by humanity. An enormous space-based gravitational wave detector that will measure distortions of space-time, revolutionize astronomy, our understanding of physics, and the past and future of our cosmos.