Gaia space observatory maps nearly 2 billion stars in Milky Way galaxy

(CNN)There are nearly 2 billion stars in our galaxy.Β At least that’s what the most current map shows. Astronomers have mapped the most extensive atlas of our Milky Way galaxy yet, including the positions of each and every one of those stars.Β The European Space Agency’s Gaia space observatory also tracked the movement, colors and brightness of these stars as well as the first visible measurement of the acceleration of our solar system.

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