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Science, Evolution, and Creationism, by the National Academies, focuses on teaching evolution in today's classrooms. Check out the other publications in our online store.
Image of Voyager spacecraft
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NASA/JPL

Voyager

Unexpected discoveries made by the two Voyager spacecrafts during their visits to the four largest planets in our solar system have changed the field of space science.

Voyager 2 was launched on Aug. 20, 1977, followed by Voyager 1 on September 5, 1977. Both encountered Jupiter in 1979, returning photographs and information on its many moons. Scientists also learned about Jupiter's Great Red Spot and Io's volcanoes.

Voyagers 1 and 2 then continued to Saturn and its Rings. Voyager 2 then headed for Uranus and Neptune. It gave us our first close-up look at the two planets.

The Voyager missions discovered a total of 21 new moons. The two spacecrafts are very close to reaching interstellar space, where no spacecraft has ever been!


Last modified September 26, 2000 by Jennifer Bergman.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF