Life of a bright star
Death of a bright star
Age of the Universe
Time for the Earth to go once around the Sun
Time for Jupiter to go once around the Sun
Time for light to travel from another galaxy to us
Time for light to travel from a distant quasar to us
Time since the great dinosaur extinction event
Time for the Sun to go once around the Galaxy
Life of a human being
Age of human beings (first Homo sapiens)
Time for light to travel from the Sun to the Earth
Time for light to travel from the Sun to the nearest star
One of the major challenges of modern cosmology involves determining the age of the entire Universe. [NASA/JPL-Caltech]
