[thedoc (OP)]

Space Boffins Sue Nelson and Richard Hollingham are joined by new Mars Society president Jerry Stone and aspiring astronaut Kate Arkless-Gray. Sue reports from the UK control room of the Mars SAFER field trial as scientists operate an ExoMars rover prototype; there’s a revealing interview by Kate with Apollo 12 astronaut Alan Bean, and shield your ears if you want to hear  how  Richard got on in QinetiQ’s centrifuge. Warning: it's not pretty...
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[sawan pradhan]

what is its function in mars?