1. There would be no Earth, so humans and animals could not live.
2. No planets means no life, no water, no air, and no land.
3. The Solar System would only have the Sun and other space things like stars and asteroids.
4. There would be no gravity to keep things in order, everything might float away.
5. We wouldn’t have a place to live, walk, or build homes.
6. There would be no day or night because planets spinning around the Sun cause that.
7. No weather, no seasons, and no nature would exist.
8. Space would be more dangerous because planets protect us from many space rocks.
9. Science, space study, and astronauts would have no planets to explore.
10. The universe would be very empty and quiet without planets.