What Is Happening to Hide Clusters?

Something is happening to hyade, which we all hope is nothing bad. It's not just the normal process of the galaxy tearing this thing apart gently. But here there's some new source of gravity, something else is tugging on this thing. And it's like slurped up the tail of this cluster as i gobbled it up. There's some massive, invisible structure out there that's tearing the hiates cluster apart.