The radii of different parts of the universe.
Man 1 x 100m
Earth 6 x 106m
Sun 7 x 108m
Milky Way 5 x 1020m
Universe 1 x 1026m
Source: 365 Days of Astronomy podcast: Big Numbers
Note that the speed of light is approximately 3 x 108 m/s, so it would take light about 5 seconds to travel from one side of the sun to the other.
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