Space-based detector can spot two gravitational waves each year

A space-based instrument called the Evolved Laser Interferometer Space Antenna (eLISA) detector is set to be launched in 2034. (Reuters) Space-based detector can spot at least two gravitational waves — ripples in space-time — each year caused by collisions between supermassive black holes, revealing the initial mass of the seeds from which the first black holes grew 13 billion years ago.
A space-based instrument called the Evolved Laser Interferometer Space Antenna (eLISA) detector