Across
- 6. The process by which plants convert sunlight into energy.
- 9. A tool used by astronomers to observe distant objects in space.
- 10. A thread-like structure in cells that carries genetic information.
Down
- 1. A massive explosion that occurs when a star reaches the end of its life.
- 2. The force that pulls objects toward each other in space.
- 3. A planet that orbits a star outside our solar system.
- 4. The powerhouse of the cell, responsible for energy production.
- 5. A community of living organisms interacting with their environment.
- 7. The path a celestial body takes around a star or planet.
- 8. A giant cloud of gas and dust in space where stars are born.