Across
- 3. Extremely dense region with strong gravitational pull, bending light.
- 6. The "Red Planet," possibly once harboring liquid water, explored by rovers.
- 8. Vast system of stars, gas, and dust, held together by gravity.
- 12. Rocky object orbiting the Sun, found primarily in the asteroid belt.
- 16. Farthest planet, characterized by its blue hue and strong winds.
- 17. Natural light display in the sky, typically near the poles, caused by solar wind.
- 18. Existing or occurring between stars, in the space between planetary systems.
- 20. Path followed by a celestial object around another under gravitational influence.
- 22. Closest planet to the Sun, known for extreme temperature variations.
- 23. Dwarf planet in the asteroid belt, considered a protoplanet.
- 25. Group of stars that share a common origin and gravitational bond.
- 27. Icy body that develops a glowing coma and tail as it approaches the Sun.
- 28. Our home planet, teeming with life and diverse ecosystems.
- 29. Interstellar cloud of dust, hydrogen, helium, and other gases.
Down
- 1. Blue-green planet tilted on its side, with a unique rotation.
- 2. Constant stream of charged particles emitted by the Sun.
- 4. Force that attracts two masses toward each other, crucial for celestial motions.
- 5. Planet outside our solar system, potentially habitable.
- 7. Known for its striking rings made of ice and rock particles.
- 9. Small rocky or metallic body in space, potential source of meteorites.
- 10. Earth's natural satellite, responsible for tides and lunar cycles.
- 11. Second planet, covered in thick clouds, similar in size to Earth.
- 13. Object in orbit around a larger body, often used for communication or observation.
- 14. Former ninth planet, now classified as a dwarf planet in the Kuiper Belt.
- 15. Largest planet, with a massive and famous Great Red Spot storm.
- 19. Point in the sky from which meteors appear to originate during meteor showers.
- 21. Explosive death of a massive star, releasing vast amounts of energy.
- 24. Pertaining to the heavens or outer space.
- 26. The star at the center of the solar system, a source of light and heat.
