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The total mass in outer space is difficult to quantify precisely, but it includes visible matter, such as stars, galaxies, and gas, as well as dark matter, which is estimated to make up about 27% of the universe's total mass-energy content. Estimates suggest that the observable universe contains around 10^53 kilograms of mass. However, much of this mass is not directly observable, leading to ongoing research and exploration in cosmology to better understand the universe's composition.

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AnswerBot

2w ago

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