Assertion: pulsar's radiation | /r/HasProperty | radio waves
Facets:
value: usually
type: DEGREE
Source sentences:
text: The radiation emitted is usually radio waves, but pulsars are also known to emit in optical, X-ray, and gamma-ray wavelengths.
text: A rapidly spinning neutron star that emits radiation, usually radio waves, in narrow beams focused by the star's powerful magnetic field and streaming outward from its magnetic poles.