Some of the Martian environment is being replicated to help test a future rover . The European Space Agency is planning missions for 2016 and 2018 . The European agency 's return to Mars comes more than a decade after its last attempt to land . Comment: Two spacecraft are currently en route to the Red Planet .
Some of the Martian environment is being replicated to help test a future rover . The European Space Agency is planning missions for 2016 and 2018 . Comment: Two spacecraft are currently en route to the Red Planet .