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Exploration of Mars

The exploration of Mars has been an important part of the space exploration missions of the Soviet Union (later Russia), the United States, Europe, and Japan.

Dozens of unmanned spacecraft, including orbiters, landers, and rovers, have been launched toward Mars since the 1960s.

These missions were aimed at gathering data and answering questions about the red planet and its past that may yield further insight into Earth's past, present, and future.

Note:   The above text is excerpted from the Wikipedia article "Exploration of Mars", which has been released under the GNU Free Documentation License.
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