Assertion: cosmic dust | /r/CapableOf | obscure object
Facets:
Source sentences:
text: Cosmic dust was once solely an annoyance to astronomers, as it obscures objects they wish to observe.
text: Cosmic dust was once solely an annoyance to astronomers, as it obscures objects they wish to observe.
text: Cosmic dust was once solely an annoyance to astronomers, as it obscures objects they wish to observe.