The Milky Way galaxy is like a gigantic ocean gyre or eddy that spins and wobbles around its center. But our home galaxy also has a colossal wave rippling through it, pulling and pushing an ocean of ...

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 ...

The galaxy our planet inhabits is called the Milky Way for the simple reason that, as seen from our world, its impossible-to-count collection of stars looks like a band of milky white light. In all ...