Across
- 1. A scientist who studies celestial objects, including stars, planets, and galaxies.
- 5. An object that orbits a planet or star, used for communication or scientific research.
- 7. Large celestial bodies that orbit around a star, like Earth, Mars, and Jupiter.
- 9. A vehicle designed to propel into space, carrying people or satellites.
- 10. System A system consisting of a star (sun) and the planets and other objects that orbit around it.
- 13. The entirety of space, including all matter, energy, galaxies, and celestial objects.
- 14. A massive system of stars, gas, and dust held together by gravity, like the Milky Way.
Down
- 1. A person who travels and works in space, often in a spacecraft.
- 2. An instrument used to observe distant objects in space, such as stars and galaxies.
- 3. The act of traveling and discovering new places, like exploring outer space.
- 4. Glowing balls of gas that emit light and heat, often seen at night in the sky.
- 6. An instrument used to observe distant objects in space, such as stars and galaxies.
- 8. The force that pulls objects toward each other, keeping planets in orbit and giving weight to objects.
- 11. Relating to the moon, Earth's natural satellite.
- 12. A bright streak of light that occurs when a meteoroid enters Earth's atmosphere.