1. Where Are We?

2. The Moon

3. In 1969

4. When can we see the Moon?

5. When can we see the Moon?

6. The many faces of the Moon

7. Moon Phases

8. Half of the Moon is always lit up by the sun. As the Moon orbits the Earth, we see different parts of the lighted area. http://www.nasm.si.edu/apollo30th/moontheater/phasepage2.html

11. http://www.niehs.nih.gov/kids/lunar/why_phases.gif

14. New Moon

15. http://www.opencourse.info/astronomy/introduction/04.motion_moon/moon_phases.gif

17. First Quarter Moon

18. http://www.opencourse.info/astronomy/introduction/04.motion_moon/moon_phases.gif

20. Full Moon

21. http://www.opencourse.info/astronomy/introduction/04.motion_moon/moon_phases.gif

23. Third Quarter Moon

24. http://www.opencourse.info/astronomy/introduction/04.motion_moon/moon_phases.gif

25. There are also four other phases of the Moon sometimes used.

27. Waxing Crescent Moon http://btc.montana.edu/ceres/html/birthdayphases.html

28. Waxing & Waning http://www.nasm.si.edu/apollo30th/moontheater/phasepage4.html

30. Waxing Gibbous Moon http://btc.montana.edu/ceres/html/birthdayphases.html

31. Waxing & Waning http://www.nasm.si.edu/apollo30th/moontheater/phasepage4.html

33. Waning Gibbous Moon http://btc.montana.edu/ceres/html/birthdayphases.html

34. Waxing & Waning http://www.nasm.si.edu/apollo30th/moontheater/phasepage4.html

36. Waning Crescent Moon http://btc.montana.edu/ceres/html/birthdayphases.html

37. Waxing & Waning http://www.nasm.si.edu/apollo30th/moontheater/phasepage4.html

38. http://www.nasm.si.edu/apollo30th/moontheater/phasepage4.html

39. http://www.calvin.edu/~lmolnar/moon/images/phases.gif

40. Moon Movie The movie is an animated GIF created by Antonio Cidadao from a sequence of still images taken during March and April 1998. Copyright Antonio Cidadao . http://aa.usno.navy.mil/faq/docs/moon_phases.html