Cosmic Scale
Earth vs Ganymede: size comparison
Earth is about 2.42 times wider than Ganymede: 12,740 km across against 5,268 km.
Compare them in 3D, at true scale
| Earth | Ganymede | |
|---|---|---|
| Diameter | 12,740 km | 5,268 km |
| Mass | 5.97 × 10²⁴ kg | 1.48 × 10²³ kg |
| Light crosses it in | 0.04 seconds | 0.02 seconds |
- Earth has about 14.1 times the volume of Ganymede.
- Earth is about 40.3 times more massive than Ganymede.
- Light takes 0.04 seconds to cross Earth, and 0.02 seconds to cross Ganymede.
Earth: The only known world with life — and liquid oceans on its surface.
Ganymede: The largest moon in the Solar System — bigger than Mercury.