Across
- 2. A luminous celestial body composed mostly of hydrogen and helium, emitting light.
- 3. An extremely bright and distant active galactic nucleus.
- 6. A large celestial body orbiting a star, spherical in shape and clearing its orbit.
- 7. A hypothetical tunnel-like structure connecting two separate points in spacetime.
- 10. A cloud of gas and dust in space, often where new stars are born.
- 11. A small celestial body composed of ice, dust, and gas, with a glowing tail when near the sun.
- 12. Cluster A group of galaxies bound together by gravity.
- 13. Hole A region of spacetime with extremely strong gravitational forces, from which nothing can escape.
- 14. An explosion of a massive star, releasing a tremendous amount of energy.
Down
- 1. A massive system of stars, gas, dust, and dark matter bound together by gravity.
- 4. A rocky object that orbits the sun, typically found in the asteroid belt between Mars and Jupiter.
- 5. System A system consisting of a star (sun) and the celestial bodies that orbit it.
- 8. A natural satellite that orbits a planet, reflecting sunlight to appear bright.
- 9. A planet that orbits a star outside our solar system.
- 11. A group of stars that forms a recognizable pattern in the night sky.