What is the mass of our milky way galaxy?
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1.5 trillion solar masses
In March 2019, astronomers reported that the mass of the Milky Way galaxy is 1.5 trillion solar masses within a radius of about 129,000 light-years, over twice as much as was determined in earlier studies, and suggesting that about 90% of the mass of the galaxy is dark matter.
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the mass of our milky way galaxy is about 78.99 trillion metric tonnes
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