1. The Outer Solar System

2. The Asteroid Belt

3. Three Asteroids

4. Ida And Its Moon

5. Double Asteroids

6. Eros

7. Asteroid Itokawa

8. Spacecraft Shadow

9. Jupiter

10. The Largest Planet

11. Jupiter, Io, and Europa

12. The Great Red Spot

13. Jupiter is Hot Inside

14. Jupiter Has A Ring

15. Callisto

16. Valhalla Basin, Callisto

17. Ganymede

18. Ganymede

19. Close-up of Ganymede

20. Europa

21. Europa’s Icy Crust

22. Io

23. Io Has Active Volcanoes

24. Lava Flows on Io

25. Eruption on Io

26. Amalthea

27. Comet Schumacher-Levy 9

28. Impact of Comet Schumacher-Levy 9, 1993

29. Impact of Comet Schumacher-Levy 9, 1993

30. Saturn from Voyager

31. Not as Exciting as Jupiter

32. Dark Side of the Rings

33. Rings and Shadow

34. Looking Back At Saturn

35. Crescent Saturn

36. Behind Saturn

37. Behind Saturn
You Are Here

38. Ripply Rings

39. Making Waves

40. Saturn and its Satellites

41. Mimas

42. Enceladus

43. Tethys

44. Titan

45. Phoebe

46. Iapetus By Saturn-Shine

47. Iapetus Ridge

48. Titan’s Haze

49. Surface of Titan

50. Aerial View of Titan

51. Aerial View of Titan

52. Surface of Titan

53. Uranus from Voyager

54. The Rings of Uranus

55. The Moons of Uranus

56. Miranda

57. Rift on Miranda

58. Neptune from Voyager

59. Neptune’s Rings

60. Triton

61. Pluto and Charon

62. Halley’s Comet

63. Nucleus of Comet Borrelly

64. Comet Tempel

65. Deep Impact

66. A Comet Hits The Sun

67. Protoplanetary Disks in Orion

68. Other Solar Systems Methods About 200 extrasolar planets known
Gravitational Wobble
Doppler Effect
Transits
Microlensing
About 200 extrasolar planets known
Can’t detect small or distant planets
A real zoo
Is our solar system unusual?

69. Studying Other Solar Systems
Detecting
Imaging the System
Selected wavelengths
Masking (Coronagraph)
Interferometry
Imaging Planets
Spectroscopy
Close Study
Flyby
Orbiter
Sample Return
Human Missions
Exploration
Colonization

70. Limits of Current Detection Methods
Can’t Detect Small Planets
Can’t Detect Distant Planets
Can’t Detect Face-On Systems

71. Benefits of Imaging Other Solar Systems
More complete census of objects
Can get information about sizes and makeup
Better chance of finding systems like our own

72. How To Image Other Solar Systems
Use Infrared
Difference in brightness is thousands, not millions
Masking (Coronagraph)
Impossible to eliminate all stray light
Interferometry
Combine light from two telescopes to cancel out starlight

73. Visiting Other Star Systems
Time problem
@ 10%c, 43 years to Alpha Centauri
@ 90%c, 4.8 years to Alpha Centauri
Missions need to be ultra reliable
Missions need to be totally autonomous
Energy problem
@ 10%c, a 10-ton probe needs 1000 Mt
@ 90%c, a 10-ton probe needs 250,000 Mt

74. How Do We Get There? Problem with rockets is just moving all that fuel
Solar Sail
Very low acceleration using sunlight
Speed up using laser or microwave beams
Orion Design
“How I learned to stop worrying and love The Bomb”
Used in movie Deep Impact
Only known technology capable of accelerating large masses to high speeds