The document summarizes key concepts about exploring space through electromagnetic radiation and telescopes. It discusses how light from distant stars and galaxies takes years to reach Earth, and how different types of telescopes like optical and radio telescopes are used to observe electromagnetic radiation from space. Important space exploration missions and discoveries are also outlined, like the Voyager probes, Galileo probe, Apollo moon landings, the space shuttle program, and the International Space Station.

1. Chapter 21: Exploring Space

5. Wavelength

6. Frequency

9. I. Radiation from Space (pg 585 )

11. Water Found on Mars!

18. Diagram of a Refracting Telescope Focal Point Convex Lens Eyepiece

20. Diagram of a Reflecting Telescope

23. Radio Telescopes

27. Night View from Space

34. Jupiter by Voyager 1

35. Saturn by Voyager 2

36. Neptune by Voyager 2

45. Images of Apollo

47. INTERNATIONAL SPACE STATION

52. Night Launch

53. Shuttle Endeavor launch on March 10 th , 2008 @ night

54. LANDING

55. PART OF THE ORBITER

57. The Orbiter

68. Apollo 13 as it looked upon landing in the ocean

71. Future Space Missions