Create a page showing data for each Abell cluster, presented so it's easy to see each cluster's average redshift and distance (e. g. Abel 1064: z=0.034, d=250 Mpc) and a short paragraph stating: The Hubble constant you found, H0, with (a realLinks to an external site.) citation. The distance to the furthest cluster you measured, in megaparsecs. The lookback time to that cluster in years (see step 6). To put that number in context, use Smithsonian's Interactive Timeline of Earth (Links to an external site.) to answer the question, "What was Earth like when the light from these galaxies started its journey?"