Is it an arbitrary selection, or is there a magnetic field direction we rely on? According to the International Astronomical Union (IAU), a planet’s north pole with respect to its rotation is ...

revealed that three of the five galaxies share the same direction of rotation — with their northern parts moving away from us and their southern parts moving toward us. Related: Exotic 'Einstein ...

There is still a margin for error, however. Even with the powerful eye of JWST, it was not possible to determine a direction of rotation for some galaxies, and resolving that may (or may not ...