Niečo prederavilo Galaxiu. Môže to byť temná hmota
Otázkou je, kde sa vzala "séria otvorov", keď vo fundovanejšom článku (link vyššie) píšu, že namiesto predpokladanej jednej medzery v prúde hviezd objavila Bonaca ešte jednu:
:::Astronomers would expect a single gap in the stream, at the point where the original globular cluster was before its stars drifted away in two directions. But Bonaca showed that GD-1 has a second gap. And that gap has a ragged edge — a region Bonaca called GD-1's "spur" — as if something huge plunged through the stream not long ago, dragging stars in its wake with its enormous gravity. GD-1, it seems, was hit with that unseen bullet.:::