We have a bullet hole. But there’s no smoking gun. Something has torn a hole through the Milky Way. A dark something. Something so strange it could rewrite the astronomy books.
The American Physical Society annual meeting has been presented with evidence of a ‘dark impactor’ — an invisible source of gravity — tearing holes in our galaxy’s tidal star formations.

Mysterious force tearing into galaxy
A ghostly force has blasted a hole in the Milky Way, tossing stars about in its wake. Is this the first evidence of astronomy’s greatest mystery?
