Assertion: universe's matter | /r/HasProperty | invisible
Facets:
value: to the entire electromagnetic spectrum
type: TRANSITIVE-OBJECT
Source sentences:
text: Dark matter is a hypothetical kind of matter that is invisible to the entire electromagnetic spectrum, but which accounts for most of the matter in the universe.
text: A popular hypothesis is that dark matter is formed by exotic particles that don't interact with regular matter, or even light, and so are invisible.