Ah, ok ... that explains it: With all the front-page happenings day after day, you might think there's a dark cloud over us, but in actual fact, while we already know we're sitting in the galactic chimney it turns out that we've maybe also been left out in the dark matter rain

"As the Milky Way consumes Sagittarius, it not only rips the stars from the smaller galaxy, but also tears away some of the dark-matter particles from that galaxy. We may be able to directly observe that in the form of a dark-matter highway streaming in one direction through the Earth."

I told you to wear a hat.