Space Croosword

2. A theory about how the universe was made.
3. An optical device for producing and observing a spectrum of light or radiation from any source.
6. Graph showing the absolute magnitude plotted against the surface temperature for a group of stars.
12. The number of periods or regularly occurring events of any given kind in unit of time.
14. The brightness of a star, moon, asteroid, etc. measured from earth.
16. A cloud of gas and dust in space.
17. A photon of penetrating electromagnetic radiation emitted from an atomic nucleus.
18. A shift toward longer wavelengths of the spectral lines.
25. A type of galaxy that we live in.
29. A shift toward shorter wavelengths of the spectral lines of a celestial object.
31. The range of wavelengths over which electromagnetic radiation extends.
33. A star in an intermediate stage of evolution.
35. The spiral galaxy that has our solar system in it.
36. This is what you see when you go to the beach.
37. A large scope that is used to see stars,planets,comets,etc.
38. A rock in space that has a blue or white tail.

1. Invisible radiation in the part of the electromagnetic spectrum.
4. Electromagnetic wave of extremely high frequency.
5. A very large luminous star that is more than 100 times bigger than our star.
7. Light in the infrared which falls between x-rays and microwaves.
8. Galaxy that has no form.
9. The explosion of a star.
10. All existing matter and space as a whole.
11. A body that orbits the sun or star.
13. A theory that think that the universe has been here and has been expanding.
15. A large luminous body.
19. A star that we orbit.
20. Prove or disapprove something.
21. A region of space having a gravitational field that sucks everything into it even light.
22. A rock that floats in space.
23. The distance successive crest of a wave.
24. The brightness of a star, moon, asteroid, etc.
26. The brightness of a star.
27. A type of galaxy having the shape of a spheroid.
28. A measuring unit to measure a distance in space.
30. A rock that orbits a planet.
32. An electromagnetic wave having a wavelength between 1 millimeter and 30,000 meters.
34. A thought of something that is unknown