Assertion: planet's moon | /r/HasProperty | possessed thick atmosphere
Facets:
value: relatively
type: DEGREE
Source sentences:
text: In October 2017, NASA scientists at the Marshall Space Flight Center and the Lunar and Planetary Institute in Houston announced their finding, based on studies of Moon magma samples retrieved by the Apollo missions, that the Moon had once possessed a relatively thick atmosphere for a period of 70 million years between 3 and 4 billion years ago.