Assertion: asteroid's surface | /r/HasProperty | old
Facets:
value: very
type: DEGREE
Source sentences:
text: Other surfaces are heavily cratered and appear to be extremely old.
text: Observations from Hayabusa 2 showed that the surface of Ryugu is very young and has an age of 8.9 ± 2.5 Million years based on the data collected from the artificial crater that was created with an explosive by Hayabusa 2.