| A | B |
|---|
| Jupiter | is the largest planet in the solar system. |
| Mercury's | planets year is only 88 Earth days long. |
| Neptune | has a storm system called the great dark spot. |
| Earth | is the only planet known to man to contain life as we know it. |
| Venus | is an inner planet that spins with retrograde rotation. |
| Luna | is a moon that originated when a planet sized body collided with Earth. |
| Phobos | is a moon that is oddly shaped and may be a captured astroid. |
| Io | is the most volcanicly active body in our solar system. |
| Triton | is a moon that revolves around its planet in retrograde orbit. |
| Ganymede | is a moon that is larger than the planet mercury. |
| Miranda | is a moon that seems to have broken apart and been peiced back together by gravity. |
| Lunar rocks | brought back by the apollo missions show the moon to be about 4.6 billion years old. |
