Across
- 2. - Artificial object placed in orbit around a planet or celestial body
- 5. - Relating to the Sun
- 8. - Group of stars forming a pattern in the sky
- 10. - Person who travels to and works in space
- 11. - Optical instrument for viewing distant objects in space
- 12. - Celestial object consisting of ice, dust, and gas
- 16. - Small rocky or metallic object that enters Earth's atmosphere
- 17. - Planet that orbits a star outside our solar system
- 18. - Branch of astronomy that deals with the physics of celestial objects
Down
- 1. - Region of space with extremely strong gravitational pull
- 3. - Rocky object that orbits the Sun, mostly found in the asteroid belt
- 4. - Vast system of stars, gas, and dust held together by gravity
- 6. - The Sun together with the planets and other celestial objects that orbit around it
- 7. - Relating to the universe as a whole
- 9. - Powerful explosion at the end of a star's life cycle
- 13. - Meteoroid that survives its passage through Earth's atmosphere and lands on the surface
- 14. - Natural satellite that orbits a planet
- 15. - Interstellar cloud of gas and dust
- 17. - Celestial event in which one object moves into the shadow of another
- 19. - Celestial body that orbits a star