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Summary: The high-tech Mars 2020 rover is about to launch into space (complete with its own helicopter). But how does this one-tonne beast compare with the original, pint-sized rover we sent to Mars in 1997?
Summary: The high-tech Mars 2020 rover is about to launch into space (complete with its own helicopter). But how does this one-tonne beast compare with the original, pint-sized rover we sent to Mars in 1997?