Assertion: nebula's core | /r/HasSubevent | the one
Facets:
Source sentences:
text: The star has not only ejected its outer layers, but the exposed remnant core is now illuminating these layers — resulting in a spectacular light show like the one seen here.
text: The star has not only ejected its outer layers, but the exposed remnant core is now illuminating these layers -- resulting in a spectacular light show like the one seen here.