The rotation of stars in galaxies such as our Milky Way is puzzling. The orbital speeds of stars should decrease with their distance from the center of the galaxy, but in fact they all have the same ...

Magnetic rotation and antimagnetic rotation represent distinct mechanisms by which atomic nuclei generate angular momentum in systems that exhibit little or no permanent quadrupole deformation. In ...

An international team has developed spherical colloidal particles for the visualization of rotational dynamics. The two-color fluorescent particles have an off-center core that allows tracking of ...