Turns Out Our Galaxy Cannibalized A Companion Much More Recently Than We Thought
The European Space Agency ’s Gaia spacecraft is creating the most elaborated function of the Milky Way . The place and motion of 1.5 billion asterisk are being measure out , and that has revealed something middling interesting . Some headliner move in ways that can only be explained if they have come from a different galaxy . And it turns out that there were likely several collision in our extragalactic nebula ’s yesteryear ....