Dark matter is not still, it behaves like a cosmic superfluid: Study

Dark Matter: A Cosmic Superfluid

Dark matter makes up approximately 85% of all matter in the universe, yet it remains invisible to telescopes as it neither emits nor absorbs light.

A recent study proposes that dark matter behaves like a cosmic superfluid, forming swirling vortex lines and stable rotating cores, known as solitons, within galaxies.

Instead of being featureless, dark matter could actually behave like a cosmic superfluid...

This theory draws parallels between the quantum world of Bose–Einstein condensates (BECs) and the grand cosmic scales of dark matter, potentially reshaping our understanding of the cosmos.

Traditionally, dark matter has been described as a collisionless fluid of particles, non-interacting and cold, known as cold dark matter (CDM).

Author's summary: Dark matter may behave like a cosmic superfluid.

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Interesting Engineering Interesting Engineering — 2025-10-20

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