What do Viking, Pathfinder, and the two Mars Rovers have in common?

A) They all found proof of life on Mars.
B) They all could move over the surface of Mars to examine the rocks.
C) They all were designed to investigate Mars' potential for life.
D) They all are still transmitting data from Mars to Earth.
E) They all proved Mars was too inhospitable for life to have every existed there.


C

Physics & Space Science

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