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Article: Planetary Exploration, Future of
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- Space Sciences
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Copyright informationCOPYRIGHT 2002 The Gale Group Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Planetary Exploration, Future of
The first artificial satellites launched into Earth orbit were part of an international scientific program called the International Geophysical Year. They returned data on Earth and its space environment. Before long, the United States and the Soviet Union began sending spacecraft to study the Moon and, later, other planets.
Sending Spacecraft to the Planets
The U.S. Ranger spacecraft (1961-1965) were designed to crash into the Moon, transmitting television images right up to the moment of impact. The Surveyor spacecraft (1966-1968) soft-landed on the Moon, verifying that the lunar surface would support an
Apollo
lander, taking pictures of the surface ...
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