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e-Journal

Voyager Discoveries (p. 454–455)


Step 1. Questions

The Voyager missions have taught us a lot about space. The thought and planning that goes into such missions is impressive. Imagine a spacecraft traveling more than 4 billion miles and using only one gallon of fuel every 30,000 miles.

Write a cause-and-effect report about the Voyager's travels through space. You will research the mission and some laws of physics to understand the spacecraft's flight. Here are some questions to guide your research:
  • Why were precision and accuracy so important to the Voyager mission?
  • How do spacecraft speed up, slow down, or change direction?
  • How did the gravity fields of planets affect the Voyager space probes?
  • Why was the Voyager mission important? What have we learned from it?
Are you ready? Begin by visiting the Web sites listed in Step 2. Look for answers to the questions above, and write down what you learned in the note-taking boxes.

With teacher supervision, you may use search engines to research other Web sites. You also can research the Voyager missions at the library. When you have finished, follow Steps 3 and 4 to write your report.



Step 2. Research

Research answers for the questions you were asked in Step 1. Visit these Web sites. Take notes about them on this page, too!


Toolbox Tip: Click here to learn how to install a plug-in.


Voyager
This NASA Web site is filled with links about the Voyager missions. In the right-hand column, click VOYAGER THE GREAT ADVENTURE CONTINUES and then the Flash Feature. This film gives an overview of the Voyager missions. Learn where the spacecraft went, what they saw, and what they learned.
Take Notes:



How Things Fly
This Web site is from the National Air and Space Museum. It contains explanations of flight in general as well as space flight. Keep clicking NEXT to learn about the forces that affect flight. When you get to the "Flying in Space" page, make sure you visit all of the links. Newton's and Kepler's Laws help you understand how Voyager gets where it's going.
Take Notes:



Voyager Mission: Did You Know?
This page contains many interesting facts about the Voyager mission, including the costs. Scroll down to the "Navigation" section to read more about the effects of planets' gravity fields on the spacecraft. Then continue down to "The Future" to see what scientists hope to learn in the future. This Web site comes from the Jet Propulsion Laboratory at CalTech.
Take Notes:



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