Why Does Jupiter Have 4 Large Moons but Saturn Only Titan? | Current Affairs 2026 | Science MCQ

A July 2026 study using magnetic field simulations offered a new explanation for why Jupiter has four large Galilean moons—Io, Europa, Ganymede, and Callisto—while Saturn has only one giant moon, Titan. Researchers found that Jupiter’s stronger magnetic field slowed the inward migration of young moons, allowing several large moons to survive. In contrast, Saturn’s comparatively weaker magnetic field allowed most large proto-moons to spiral into the planet, leaving Titan as the only surviving giant moon.

📚 MCQ:
According to recent research using magnetic field simulations, why does Jupiter have four large moons while Saturn has only one giant moon (Titan)?

✅ Answer: Because Jupiter’s stronger magnetic field prevented several large moons from spiraling into the planet, whereas Saturn’s weaker magnetic field allowed most large proto-moons to fall into Saturn, leaving only Titan.

✅ In this video, you’ll learn:

The correct answer to the MCQ
Why Jupiter has four large Galilean moons
Why Titan is Saturn’s only giant moon
How magnetic field simulations explain moon formation
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