This diagram shows the distribution of redshifts, and corresponding age of the Universe, for gamma-ray bursts detected by NASA's Swift satellite. The new GRB 090423 at a redshift of z=8.2 easily broke the previous record for
gamma-ray bursts, and also exceeds the highest redshift galaxy and quasar
discovered to date, making it the most distant known object in the Universe. GRB 090423 exploded on the scene when the Universe was only 630 million years old, and its light has been traveling to us for over 13 billion years.