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8.6×104 Earth rotation time
1.6×109 Time between Milky Way supernovae
3×1013 Time for evolution of a species
7.3×1015 Orbit time for sun around galaxy center
6×1016 Time for galaxy to cross a cluster
1.1×1017 Primeval slime to man time
1.5×1017 Age of Earth and Sun
1.5×1017 Uranium-238 half-life
3×1017 Sun lifetime
3.8×1017 Rough age of the Milky Way
4×1017 Rough age of 47 Tucanae
4.1×1017 Age of the universe
Jose Wudka
9/24/1998