Planets other than Earth with liquid on or near the surface are ____.
A)nonexistent
B)less rare than we thought
C)extremely common but only in the form of water
D)extremely common but only in the form of ice

Question

Quizplus · Accepted Answer

Recent studies of our own solar system and exoplanets suggest that planets with liquid on or near the surface may be less rare than previously thought. Additionally, these liquids are not limited to just water, as hydrocarbons have been detected on Saturn's moon Titan and water-ammonia mixtures have been observed on Neptune's moon Triton.

Planets Other Than Earth with Liquid on or near the Surface