Multiple Choice
The first successful landers on the surface of Mars were:
A) Mariners 4 and 5 in 1965.
B) Vikings 1 and 2 in 1976.
C) Voyagers 1 and 2 in 1979.
D) Pathfinder and Sojourner in 1997.
E) Spirit and Opportunity in 2004.
Correct Answer:

Verified
Correct Answer:
Verified
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