Assertion: comet's surface | /r/SimilarTo | small solar system bodies
Facets:
Source sentences:
text: Professor Alan Fitzsimmons commented: "We have discovered that the surface of `Oumuamua is similar to small solar system bodies that are covered in carbon-rich ices, whose structure is modified by exposure to cosmic rays.
text: We have discovered that the surface of 'Oumuamua is similar to small solar system bodies that are covered in carbon-rich ices.