Unrecorded ‘space laser’ bursts from merging galaxies 8 billion light-years away
Astronomers have spotted the farthest and brightest “cosmic laser,” or megamaser, ever seen, and it’s still exploding as a result of a collision of galaxies that happened when the universe was halfway through its current age. This star system, named HATLAS J142935.3–002836, emits light that should have traveled about 8 billion years before arriving. The … Read more