Clumps of dark matter could be lurking undetected in our galaxy
A hypothetical ‘dark’ force could allow clouds of invisible particles to collapse into small structures
DARK COLLAPSE Dark matter is normally thought to form a spherical halo (illustrated in blue) around galaxies like the Milky Way. Two physicists suggest that dark matter could collapse into more complex structures.
L. Calçada/ESO (CC BY 4.0)