Assertion: methane | /r/HasProperty | abundant
Facets:
value: in neptune's atmosphere
type: LOCATION
value: highly
type: DEGREE
value: on the giant planets
type: LOCATION
Source sentences:
text: Methane is abundant in many parts of the Solar system and potentially could be harvested on the surface of another solar-system body (in particular, using methane production from local materials found on Mars or Titan), providing fuel for a return journey.
text: Methane is also abundant on the giant planets Uranus and Neptune where it was the product of chemical processing of the primordial solar nebula material and then included under the form of ice clathrates during the planetary accretion.
text: Rather, it appears that Neptune is more efficient at trapping leftover formation heat due to the fact that methane is highly abundant in Neptune's atmosphere, and methane is an excellent insulator of heat (i.e. the greenhouse effect).