Astronomy Cast Ep. 365: Gaia

The European Gaia spacecraft launched about a year ago with the ambitious goal of mapping one billion years in the Milky Way. That’s 1% of all the stars in our entire galaxy, which it will monitor about 70 times over its 5-year mission. If all goes well, we’ll learn an enormous amount about the structure, movements and evolution of the stars in our galaxy. It’ll even find half a million quasars.
Read the rest of Astronomy Cast Ep. 365: Gaia (46 words)

© Fraser for Universe Today, 2015. |
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