| The largest of Saturn's moons is ____. |
Big Bang |
| The ____ occurred about 13.6 billion years ago. |
Ceres |
| The Sun is one of the 100-400 billion stars in the ____ galaxy. |
Copernicus |
| Nicolaus ____ proved that the planets orbit the Sun. |
Ganymede |
| The ____ is about a hundred times larger than the Earth. |
Jupiter |
| The largest of Jupiter's moons is ____. |
Milky Way |
| The Great Red Spot is a persistent storm on ____. |
Sun |
| The only dwarf planet in the asteroid belt is ____. |
Titan |
