Scientists don't know what's causing this a ripple in our Galaxy, but it could point to a chaotic history ...

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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 ...

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 ...