4 big #MilkyWay #mysteries the next #Gaia #mission data dump may solve

 

The data, compiled by the European Space Agency's Gaia mission, contains an unprecedented amount of information about more than 1 billion of the brightest objects in the sky. Astronomers hope the new data, which will be released June 13, will help solve some major mysteries about the birth and life of the Milky Way and the stars in it. Here's four big questions scientists hope to answer.

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