Io's Underground Magma Ocean

Jupiter's moon Io is the most volcanically active body in the solar system, with over 150 active volcanoes. The volcanoes' locations are a mystery, as they don't align with predicted hotspots. This discrepancy may be due to Io's tidal flexing caused by Jupiter and its moons, Europa and Ganymede, which generates heat. Research led by Christopher Hamilton suggests that Io's volcanoes are shifted eastward, possibly due to a faster rotation or an underground magma ocean. The magma ocean theory is supported by evidence from the Galileo probe and could explain the heat flow and volcano locations.

What makes Io the most volcanically active body in the solar system?

• Its atmosphere composition

• Its size compared to other moons

• Its distance from the Sun

• Tidal flexing due to gravitational interactions

What did Christopher Hamilton's team discover about the location of Io's volcanoes?

• They are located at the predicted hotspots

• They are shifted eastward from the predicted hotspots

• They are evenly distributed across Io

• They are concentrated at the poles

Which factor might explain the unexpected location of Io's volcanoes?

• Io's rotation speed

• Io's surface temperature

• Io's atmosphere

• Io's distance from the Sun

What evidence supports the existence of a magma ocean beneath Io's surface?

• Io's distance from Jupiter

• Io's atmosphere composition

• Io's surface temperature

• Unexpected measurements in Jupiter's magnetic field

How does the proposed magma ocean affect Io's volcanic activity?

• It stabilizes the volcanic eruptions

• It reduces the number of volcanoes

• It generates additional heat and shifts volcano locations

• It cools down the surface