Assertion: cosmic ray | /r/HasProperty | particle
Facets:
value: generally
type: DEGREE
value: simply
type: DEGREE
Source sentences:
text: In 1949 physicist Enrico Fermi suggested that cosmic rays were simply particles accelerated by magnetic fields in interstellar gas clouds.
text: Cosmic rays are generally single atoms or particles that are produced from supernovae events when a star dies.
text: Cosmic rays, whose origin lies mostly outside the solar system, are actually particles, not electromagnetic radiation as the name might suggest.