NSEA · Galaxies and Cosmology · Quiz
5 real NSEA questions on Galaxies and Cosmology. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 3
HARDA galaxy shows a redshift z = 0.05. Assuming Hubble's constant H₀ = 70 km/s/Mpc, what is the approximate recession velocity of this galaxy in km/s?