Astronomers detect most distant fast radio burst (FRB 20240304B) from over 10 billion light-years away

NASA says Webb measured the distance to the farthest known fast radio burst. FRB 20240304B has a redshift of about 2.15, and Webb identified its faint host dwarf galaxy, which ground telescopes could not see. The detection could help map matter between galaxies and study the early universe. Young magnetars in star-forming regions have been suggested as a possible origin, but the cause of fast radio bursts remains uncertain.