Scientists solve weighty matter of Milky Way mass

Scientists solve weighty matter of Milky Way massAstronomers said Thursday they had accurately calculated the mass of the Milky Way for the first time, using new data sets that include the weight of dark matter. In a collaboration between NASA and the European Space Agency’s Gaia observation craft, a team of experts calculated our galaxy to be around 1.5 trillion solar masses. Pervious estimates put the mass of the Milky Way ranging between 500 billion and 3 trillion times the mass of the Sun.



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