space
How the Gaia Telescope Will Scan the Entire Sky

When the Gaia space telescope launches next week, it's going to attempt the biggest astronomy project of all time: it will try and scan the entire sky, capturing images of at least a billion stars in our galaxy. Read More >>

monster machines
How the Gaia Spacecraft Will Reveal the True Nature of Our Galaxy

Our solar system is positioned near the center of the Milky Way, not far from the galactic core. It's a nice part of town, sure, but it doesn't allow for a very clear view of the rest of the galaxy. That's prevented us from studying many of the Milky Way's fundamental aspects, like whether it has two arms or four, how big it is, how fast it's moving, and whether we're someday going to ram headfirst into the Andromeda galaxy. Read More >>

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