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Across 4. quantity measured to determine size, speed, and movement of astronomical objects 9. term for the vast expanse of space in which light has traveled since the big bang 10. process the sun uses to produce energy 13. 96% of mass of the universe not emitting known spectrums od radiation 14. point of orbit that is furthest from sun 18. term used to help us remember the colors of the visible spectrum 22. clear lenses 23. smaller, rocky planets 24. measure of a stars brightness 26. star that will consume itself in about 10 billion years 29. larger gaseous planets 30. range of the EMS seen in a rainbow 31. pattern formed by stars with relative proximity 32. radiation used to study black holes 33. long wave radiation used to ÒlistenÓ to the universe 34. dark areas on sun cause by magnetic storms 35. event that happened 14 billion years ago 36. average distance between the sun and earth

Down 1. space probe used in the 70Õs and 80Õs to photograph outer planets 2. large, spherical body orbiting the sun in a cleared path 3. type of planet that has not cleared its orbit of all other objects 5. charged particles from sun interacting with EarthÕs atmosphere 6. collapse and explosion of star 7. the sunÕs ÒatmosphereÓ 8. result of continual collapse of a stars core to create singularity 11. everything held in orbit by the sun 12. stars that have started the process of fusion and are consuming hydrogen 15. point of orbit that is closest to the sun 16. type of imaginary plane in which all planets orbit 17. thickest layer of sun 19. spectrum of all radiation 20. disturbances in space which can disrupt equipment on earth 21. slightly longer wavelength then visible light 25. mirrored lenses 27. astronomical cloud 28. spectrum of light with slightly larger energy then visible