Assertion: dark matter | /r/HasProperty | undetectable
Facets:
value: currently
type: TEMPORAL
value: via the use of normal sensors
type: CAUSE
value: by its emitted radiation
type: CAUSE
value: directly
type: MANNER
Source sentences:
text: Thus, dark matter is undetectable directly, as all of our observations of the universe, apart from the detection of gravitational waves, involve capturing electromagnetic radiation in our telescopes.
text: Dark matter is a substance which was undetectable via the use of normal sensors, and which was thought to make up the majority of the universe's mass.
text: In astronomy and cosmology, dark matter is hypothetical matter that is undetectable by its emitted radiation, but whose presence can be inferred from gravitational effects on visible matter.
text: Dark matter is currently undetectable but scientists know it is there because without, galaxies would not have enough matter to produce the gravity holding the tightly together.