Advanced Space-themed Crossword Puzzle
Listed Items
- 1.  An object seen in the sky that cannot be identified
 
- 2.  A venture outside of a spacecraft into the vacuum of space
 
- 3.  A hypothetical tunnel in spacetime connecting distant parts of the universe
 
- 4.  A celestial body that emits its own light
 
- 5.  A structure where astronomers study the night sky and its phenomena
 
- 6.  A neutron star that emits a beam of radiation in regular intervals
 
- 7.  The totality of all matter, energy, and space in existence
 
- 8.  A celestial object that moves rapidly in an elliptical orbit around the sun
 
- 8.  A celestial pattern of stars visible in the night sky
 
- 9.  A massive system of millions or billions of stars, interstellar gas, and dust
 
- 10. Life form from outer space
 
- 11. A distant planet that revolves around a star not in our Solar System
 
- 12. the branch of science that deals with objects and matter outside the Earth's atmosphere
 
- 13. A star at the center of the solar system that is composed of hot plasma and emits radiation
 
- 14. A star that suddenly increases greatly in brightness because of a catastrophic explosion
 
- 15. A scientist who studies celestial objects and phenomena
 
- 16. Instrument that uses a combination of lenses and mirrors to enlarge an image
 
- 17. A spacecraft propelled by a jet of hot exhaust gases
 
- 18. Periodic motion of a celestial body around a point in space
 
- 19. A small, airless, rocky body that orbits the Sun
 
- 20. The mutual attraction of two objects
 
- 21. A moment when the sun's direct rays are at their most northerly or southerly
 
- 22. A momentary darkening of the sun's light caused by the moon's orbit
 
- 23. A professional who flies a rocket-propelled vehicle
 
- 24. Man made object that moves in a curved path around the earth and can be used for communication
 
- 25. A celestial object that reflects light from the Sun