Universe Statistics

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Universe StatisticsYear
Total number of atoms in the universe1078 to 1082
Diameter of the known universe93 Billion light years
Number of stars in the Milky Way200-400 Billion
How many miles is one light year5.87 Trillion
Closest spiral galaxy (Andromeda Galaxy )2.5 Billion light years
Estimated age of the universe13.75 Billion years
Estimated number of galaxies100 Billion
Number of discovered planets in the Milky Way350
Closest star to earth (Proxima Centauri)4.24 Light Years
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Statistic Sources & References
Sources: Lawrence Krauss, NASA
Content Author: Statistic Brain

Date research was conducted: March 2, 2015

Universe Statistics

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