Powerful ‘space laser’ beaming directly at Earth from 5bn lightyears away detected

It was detected by an international team of scientists using South Africa's "MeerKAT," a radio telescope consisting of 64 antennas.

Megamasers are naturally occurring, radio-wavelength lasers that can help shed light on galaxy collisions.

"Megamasers act like bright lights that say: Here is a collision of galaxies that is making new stars and feeding massive black holes," said study co-author Jeremy Darling, of the University of Colorado.