1	2			3															4		5
										6
			7
											8	9												10
11
														12
				13												14
		15
16										17						18
							19
					20					21
																					22
		23
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			25							26										27
										28
							29
												30		31
		32															33						34
										35
																				36
					37
													38

Across 1. DIAMETER 6. INEXPLICABLE 7. CIRCLE 8. INHABITANT 11. UNIVERSE 13. ANY 14. TRIANGLE 16. LIKELY 17. CENTIMETER 21. GEOMETRICAL 23. DESIGN 24. MYSTERIOUS 25. THEORY 27. LENGTH 28. UNLIKELY 30. WIDTH 32. EARTH 33. STRANGE 35. ROUND 36. MOON 37. FUNCTION 38. SHADOW

Down 2. ATTEMPT 3. PROOF 4. OBSERVATORY 5. RECTANGLE 9. ASTRONOMER 10. PHENOMENON 12. ECLIPSE 15. TON 16. PLANET 18. STRUCTURE 19. HEIGHT 20. PEOPLE 22. DISTANCE 26. MYSTERY 29. IMAGE 31. RABBIT 34. OVAL