Assertion: orion nebula | /r/HasProperty | enormous cloud of gas
Facets:
value: according to modern astronomers
type: OTHER
Source sentences:
text: One such stellar nursery is the Orion Nebula, an enormous cloud of gas and dust many light-years across.
text: According to modern astronomers, the Orion Nebula is an enormous cloud of gas and dust, one of many in our Milky Way galaxy.