8 billion years radio reachings earth
An artist's illustration traces the long, cosmic path of a fast radio burst that originated in distant galaxies and reached Earth 8 billion years later. (Globeraccess)— Astronomers have detected a mysterious blast of radio waves that have taken 8 billion years to reach Earth. The fast radio burst is one of the most distant and energetic ever observed. Fast radio bursts, or FRBs, are intense, millisecond-long bursts of radio waves with unknown origins. The first FRB was discovered in 2007, and since then, hundreds of these quick, cosmic flashes have been detected coming from distant points across the universe. The burst, named FRB 20220610A, lasted less than a millisecond, but in that fraction of a moment, it released the equivalent of our sun’s energetic emissions over the course of 30 years, according to a study published Thursday in the journal Science . Many FRBs release super bright radio waves lasting only a few milliseconds at most before disappearing, whic...