Ganymede, a moon of Jupiter, is the largest moon in the solar system and is even bigger than the planet Mercury.
Fact #10356
👍 0 · 👎 0
More Space Facts
Gravitational waves were detected a century after Einstein predicted them.
Fact #1607 · Space
There are rogue planets drifting through space with no star at all.
Fact #1871 · Space
Dark matter is believed to make up most of the universe’s mass but has not been directly observed.
Fact #1594 · Space
The observable universe is about 93 billion light‑years wide.
Fact #1841 · Space
Jupiter has a magnetic field stronger than Earth's.
Fact #173 · Space
The light you see from some stars today began traveling before humans existed.
Fact #1906 · Space
Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
Fact #1782 · Space
Black holes can bend light through gravitational lensing.
Fact #1598 · Space
Want more facts?
We have over 11,441 facts across 15 categories.