Moon of Jupiter
Ganymede
The largest moon in the solar system, bigger than Mercury, and the only moon with its own magnetic field.
- Diameter
- 5,268 km
- Gravity
- 0.15 g
- Orbit
- 7.2 days
Can we live on Ganymede?
Air: only a faint trace of O₂, far too thin to breathe. You’d live in sealed, pressurised habitats.
Gravity: 0.15 g. Someone who weighs 70 kg on Earth would weigh 10 kg there.
Ground: Water ice and rock; a salty ocean deep inside.
Atmosphere
- O₂
Measured by Galileo, Juno