Assertion: star's planet | /r/HasAspect | moon
Facets:
value: in complex planetary-type systems
type: OTHER
Source sentences:
text: Every planet except Mercury and Venus has at least one natural satellite, or moon.
text: The gas giant planets have many moons and thus frequently display eclipses.
text: Our planet, Earth, has only one moon, but other planets have multiple moons that orbit around them.
text: Our planet, Earth, has only one moon, but other planets have multiple moons that orbit around them.
text: Earth has one, Mars has two, and the giant planets have numerous moons in complex planetary-type systems.
text: Terrestrial planets tend to have very few natural satellites, or moons.