1st gravitational wave detector in space 'LISA' will hunt for ripples in spacetime 

 The triple-spacecraft gravitational wave detector, named LISA, has received the go-ahead to become the first mission to detect spacetime ripples from space. 

https://cdn.mos.cms.futurecdn.net/3ySi498XhgwjQbpAhHjYYf.png

https://www.space.com/gravitational-wave-detector-space-lisa-ripples-spacetime-esa-nasa