Assertion: comet's tail | /r/HasProperty | conspicuous
Facets:
value: in its absence
type: TEMPORAL
Source sentences:
text: Not only is it the first-ever interstellar asteroid or comet detected by astronomers while passing through the solar system, its shape is strange, its acceleration is unexpected, and a cometary tail — the signature trail of particles seen behind shooting stars — is conspicuous in its absence.