What is a telescope? -- Who invented the telescope? -- What is an optical telescope? -- How do optical telescopes make -- The invisible visible? -- Where are the largest optical telescopes on Earth? -- What is a radio telescope? -- What is an infrared telescope? -- Why would an infrared telescope tag along after earth? -- What is an ultraviolet telescope? -- What are x-ray and gamma ray telescopes? -- What is an observatory and where are they located? -- What is the largest telescope in orbit? -- How does Hubble stay in orbit? -- Why is Hubble so important? -- What is a space probe? -- What kinds of facts do space probes collect? -- For what kinds of mission would a probe be good? -- What was the space race? -- Where did early space probes go? -- When did space probes reach Venus, Mercury, and Mars? -- How did pathfinder collect facts about Mars? -- What did Mars's odyssey discover? -- What are spirit and opportunity? -- Why were plaques aboard the probes that studied Jupiter? -- What did the Voyager and Galileo probes discover? -- What probe continues to orbit Saturn? -- What has NASA learned from stardust and near? -- What is "space junk"? -- Fun facts about telescopes and space probes.

What is a telescope -- Who invented the telescope -- What is an ooptical telescope -- How do opitcal telescopes make the invisble visible -- Where are the largest opotical telescoopes on earth.