Assertion: pulsar's beam | /r/HasProperty | visible
Facets:
value: across vast distances
type: LOCATION
Source sentences:
text: They are what is known as the “lighthouses” of the universe – rotating neutron stars that emit a focused beam of electromagnetic radiation that is only visible if you’re standing in
text: Given that pulsars rotate extremely quickly and the beam could be visible across vast distances - such as if it were shining through the pulsar's nebula - would it appear as a straight line, curved line or perhaps a cone
text: The beam of radio wave produced is visible when pointed toward the Earth and the phenomenon is called lighthouse effect.