... A Redshift Lookup Table for our Universe . ... One such table is listed above , where redshift z is listed in the first and last columns, while the corresponding universe age in billions of years is listed in the central column. ... Although stars in our galaxy are effectively at cosmological redshift zero, the most distant supernovae seen occur out past redshift one , which the above chart shows occurred when the universe was approximately half its present age. ... NASA Official: Jay Norris. ...