Space
저자: Jack Perrin Smith Kahl
1. Order of the planets
1.1. The order of the planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, uranis, Neptune and then our dwarf planet pluto
2. Space junk
3. Space junk just keeps increasing
4. The Moon
4.1. the moon has craters that are so big they named them sea like sea of sttorms
5. Comets
5.1. comets can travel at 366 miles per second that's real fast
