Assertion: krypton's life | /r/HasProperty | short
Facets:
value: comparatively
type: MANNER
value: on a cosmological time scale
type: OTHER
Source sentences:
text: Because the half-life of 129I is comparatively short on a cosmological time scale (16 million years), this demonstrated that only a short time had passed between the supernova and the time the meteorites had solidified and trapped the 129I.