Assertion: comet's dust | /r/MadeOf | complex organic compounds
Facets:
Source sentences:
text: Cosmic dust contains complex organic compounds (amorphous organic solids with a mixed aromatic-aliphatic structure) that can be created naturally by stars and radiation.
text: Cosmic dust contains some complex organic compounds (amorphous organic solids with a mixed aromatic–aliphatic structure) that could be created naturally, and rapidly, by stars.