What Evidence Suggests That Enceladus Has Ongoing Geological Activity

question 88

Multiple Choice

What evidence suggests that Enceladus has ongoing geological activity?

• A)Voyager 2 photographed liquid nitrogen geysers 10 kilometers tall.
• B)Lack of impact craters on much of its surface, evidence of ice flows from possible volcanicactivity, and geysers that supply material for the E-ring.
• C)Voyager 1 showed sulfur eruptions all over its pizza-pie colored surface.
• D)Enceladus is located within Saturn's Roche limit, and ready to blow up.
• E)Enceladus undergoes severe tidal stresses from its resonance with Titan.

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Definitions:

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Sensitization

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Disordered mental state of extreme excitement.