Record-breaking ‘space laser’ erupts from merging galaxies 8 billion light-years away
space.com Mar 31, 2026

Record-breaking ‘space laser’ erupts from merging galaxies 8 billion light-years away

AI-summarised brief · reviewed before publication

Astronomers have spotted the most distant and brightest "space laser," a hydroxyl megamaser, blasting from a collision between galaxies 8 billion light-years away. The light, seen in microwave radiation, was magnified by gravitational lensing, allowing detection by the MeerKAT radio telescope in South Africa. This rare phenomenon occurs when hydroxyl molecules collide in gas-dense galaxies, and its discovery provides insight into the universe's distant past. The megamaser's brightness was amplified, making it visible for study.