Why do galaxies rotate?

T1Covered by 1 source · first reported by MIT News (research) / Quanta / The Conversation at 02 Nov, 13:01 UTC

Galaxies act a little bit like figure skaters twirling on the ice – but at an astronomical scale.

Sources

• T1Why do galaxies rotate?MIT News (research) / Quanta / The Conversation02 Nov, 13:01