This observatory has probably been the most transformative astronomy project of the 21st century, but there’s a good chance you’ve never heard of it. Just last week, for instance, the Hayden ...

The motions of stars in the Milky Way have revealed a giant outward ripple, set off by a massive event sometime in our galaxy's wild past. In a new analysis of data collected by the Gaia space-mapping ...

Large-scale map (330,000 light years side length) of the density of the 217 million stars from the Gaia DR3 XP sample in Galactocentric Cartesian co-ordinates. Credit: F. Anders, Universitat de ...

The European Space Agency’s Gaia mission has almost completely depleted the cold gas propellant that kept it spinning and able to scan the sky, so it has decided to nominally end science operations of ...

This week, the world will see one of the biggest dumps of astronomical data, ever. Launched in 2013, the ESA's Gaia spacecraft is meant to do so-called astrometry, or space measurement, taking a 3D ...

The first catalogue of more than a billion stars from ESA’s Gaia satellite was published today – the largest all-sky survey of celestial objects to date. On its way to assembling the most detailed 3D ...

(CNN) — Astronomers have used the Gaia space telescope to spy some of the first building blocks of the Milky Way galaxy: two ancient streams of stars named Shakti and Shiva that helped our home galaxy ...

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