1. Voyage Through Space… Artist rendition

2. Spaceship Earth, Our Home Satellite Composite

3. What causes the seasons? A) Earth’s distance from the Sun B) the tilt of Earth’s axis C) variations in the Sun’s output D) the Moon’s gravity

4. What causes the seasons? B) the tilt of Earth’s axis

5. Moon

6. Phases of the Moon

7. How long does it take for the Moon to orbit Earth? A) One day B) One week C) One month D) One year

8. How long does it take for the Moon to orbit Earth? C) One month (or “moonth”)

9. Impacts, Collisions, and Moon Formation

10. Sol

11. Distance from the Sun to the Earth = 93,000,000 miles or one AU (Astronomical Unit)

12. Sun Solar Prominence Magnetic view X-ray view

13. How fast does light travel through space? A) 1 million miles/hour B) 93 million miles/second C) 186 miles/second D) 186,000 miles/second

14. ) 186,000 miles/second D) 186,000 miles/second How fast does light travel through space?

15. Mercury Mariner 10 composite images

16. Mercury Mariner 10 images composite

17. Venus Magellan spacecraft, 1991

18. Venus Atmosphere Surface Color-enhanced radar composite image Magellan spacecraft, 1991

19. Mars

20. Thin atmosphere Viking spacecraft, composite image

21. Mars Rover

22. Surface of Mars Martian crater Martian hills

23. Asteroid belt A field of space debris orbiting our sun, found between Mars’ and Jupiter’s orbits.

24. Jupiter Cassini spacecraft, 2002

25. Jupiter Cassini spacecraft, 2002

26. Great Red Spot Voyager 2, 1979

27. Which of Jupiter’s moons is thought to possess underground oceans? A) Amalthea B) Io C) Europa D) Himalia

28. Which of Jupiter’s moons is thought to possess underground oceans? C) Europa

29. Europa Galileo spacecraft, 1996

30. Saturn Hubble telescope

31. Saturn Hubble telescope

32. Rings of Saturn Cassini space craft image, 2004 What keeps Saturn’s rings in place?

33. Uranus Picture by Voyager 2 Spacecraft, 1986

34. Uranus Picture by Voyager 2 Spacecraft, 1986

35. Which of the following planets has rings? A) Mercury B) Mars C) Neptune D) Pluto

36. Which of the following planets has rings? C) Neptune, but they can’t be seen from Earth

37. Neptune

38. Voyager 2 spacecraft images, 1989

39. Pluto

40. Hubble telescope Pluto Charon

41. Which of the following objects would appear to streak across the sky? A) A planet B) A comet C) A meteor D) The Moon

42. Which of the following objects would appear to streak across the sky? C) A meteor

43. Comet debris causes meteor showers. Meteors (Shooting stars) streak through our atmosphere, while comets orbit the sun. Halley’s comet taken from Hubble

44. Milky Way Galaxy Artist rendition

45. Milky Way Galaxy Artist’s rendition from recent observations

46. Roughly how many stars do astronomers think are in the Milky Way Galaxy? A) 100 thousand B) 1 billion C) 200-400 billion D) a trillion

47. Roughly how many stars do astronomers think are in the Milky Way Galaxy? C) 200-400 billion

48. Black Hole Hubble telescope photo of center of Milky Way

49. A place where stars are born is called what? A) a nebula B) an asteroid belt C) a planetary nebula D) Hollywood

50. A place where stars are born is called what? A) a nebula

51. Crab Nebula Hubble telescope

52. N-11, Emulsion Nebulas Hubble telescope

53. Hourglass Nebula Hubble telescope

54. Horsehead Nebula Hubble telescope

55. Planetary Nebulae

56. What color star is the hottest? A) Red B) Blue C) Yellow D) Green

57. What color star is the hottest? B) Blue, while red stars are the “coolest.”

58. By comparison, the Sun has a surface temperature of about 11,000 degrees, F. Filtered telescope

59. The hottest blue-white stars may have surface temperatures as hot as 72,000 degrees, F. “Cool” red stars have surface temperatures of about 5000 degrees, F.

60. The Pleiades Telescope

61. Betelgeuse

62. Which of the following will the Sun become when it grows old? A) A black hole B) A red dwarf C) A white dwarf D) A blue giant

63. Which of the following will the Sun become when it grows old? C) A white dwarf

64. Supernova Supernova remnant Hubble telescope

65. Who discovered that the galaxies are moving apart? A) Enrico Fermi B) Carl Sagan C) Albert Einstein D) Edwin Hubble

66. Who discovered that the galaxies are moving apart? D) Edwin Hubble...

67. …after whom the Hubble Space Telescope is named.

68. Universe Hubble’s deepest view of space and first galaxies

69. Astrobiology First Color View of Titan's Surface What are we doing to find out if there is life out there in the universe?

70. Exploration Buzz Aldrin Apollo 8 launch

71. Cassini spacecraft Artist’s renditions Mars rover Galileo spacecraft

72. Photo of International Space Station from space shuttle First photo of extrasolar planet, Hubble telescope New Discoveries…

73. How many planets outside our solar system have been found so far? A) less than 20 B) 3 C) 1, but it blew up D) about 80

74. How many planets outside our solar system have been found so far? D) about 80...

75. …many of these “extrasolar planets,” as they’re called, were discovered by Drs. Geoffrey Marcy & Paul Butler of the University of California at Berkeley.

76. What was most significant about the lunar voyage Was not that humans set foot on the moon But that we set eye on the Earth

81. Hubble telescope view into Sagittarius