Universe Today is 100% AD-FREE thanks to our patrons. Here's how we do it

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.

Visit the

Astronomy Cast Page

to subscribe to the audio podcast!

We record Astronomy Cast as a live Google+ Hangout on Air every Monday at 12:00 pm Pacific / 3:00 pm Eastern. You can watch here on Universe Today or from the

Astronomy Cast Google+ page

.

Space Bites+ Our latest video — free on Patreon Starship Returns // More Evidence for Betelbuddy // Results from Chang’e-6 Moon Rocks The extended edition: ad-free, with extra content. Free to watch — no account needed. ▶  Watch it free