When Galaxies Collide

Our own galaxy, the Milky Way, and the one called Andromeda are on a collision course. In just (!) 4 billion years they’ll slam into each other, creating what somw wags have decided to name Milkomeda. Well, “slam” isn’t perhaps the best word: interstellar spaces means it’s extremely unlikely any stars or planets will actually hit each other, but there’s plenty of gas clouds that’ll cause a shockwave or two.

Read about it and listen about it at the Guardian.