Assertion: asteroid belt's body | /r/HasAspect | surprising amount of hydrogen
Facets:
value: on its surface
type: LOCATION
Source sentences:
text: NASA's Dawn spacecraft, which visited the asteroid in 2012, discovered that the rocky body had a surprising amount of hydrogen on its surface.
text: NASA's Dawn spacecraft, which visited the asteroid in 2012, discovered that the rocky body had a surprising amount of hydrogen on its surface.