How is Europa's interior kept heated?
A) Jupiter's strong magnetic field causes the core to stay molten.
B) Solar radiation causes a runaway greenhouse effect.
C) It is large enough to retain much of its internal energy from when it first formed.
D) Continuous stress caused by its intense gravitational interaction with Jupiter.

Question

Quizplus · Accepted Answer

Europa's interior is kept heated through tidal heating, which is a result of its gravitational interaction with Jupiter. As Europa orbits Jupiter, the immense gravitational pull from the planet causes the moon's interior to flex and bend. This continuous flexing generates internal friction, which in turn produces heat, keeping parts of Europa's interior, such as its subsurface ocean, in a liquid state. This process is distinct from the heating mechanisms of other celestial bodies, which might rely on solar radiation, internal radioactive decay, or residual heat from formation.

How Is Europa's Interior Kept Heated