2007-10-23 09:52:56 · 4 answers · asked by Class of '09 3 in Science & Mathematics ➔ Astronomy & Space
my mother in law
2007-10-23 11:06:55 · answer #1 · answered by Mercury 2010 7 · 0⤊ 1⤋
Gravity between Jupiter and Io has the moon tidally locked - meaning that the same face of Io is always towards Jupiter, just like Earth's moon.
Since Jupiter has a lot of other moons in orbit, the gravity of the other moons tries to disturb Io's position. The forces twisting on Io, especially Jupiter's immense gravity, have the effect of squeezing it. This squeezing heats up the core of Io - which leads to the active vulcanism.
2007-10-23 10:10:04 · answer #2 · answered by ZeroByte 5 · 1⤊ 0⤋
Tidal interaction from Jupiter and the other moons of Jupiter.
2007-10-23 09:59:14 · answer #3 · answered by Vincent G 7 · 1⤊ 0⤋
It's core. The only reason Io is called a moon is because it orbits Jupiter. Just because it's a moon does not mean it has to be 'dead'.
2007-10-23 10:01:44 · answer #4 · answered by Anonymous · 0⤊ 3⤋