Exact replica of the Mars Rover Curiosity, in the Mars Yard at Jet Propulsion Laboratory at the California Institute of Technology.  Photo / James CritchleyExact replica of the Mars Rover Curiosity, in the Mars Yard at Jet Propulsion Laboratory at the California Institute of Technology. Photo / James Critchley

Dr Sanjoy Som, planetary scientist and founder of BMSIS, studies planetary environments from early Earth to Mars. Photo / SuppliedDr Sanjoy Som, planetary scientist and founder of BMSIS, studies planetary environments from early Earth to Mars. Photo / Supplied

Dr Graham Lau, “the Cosmobiologist”, is an astrobiologist, science communicator, and host of Nasa’s Ask an Astrobiologist. Photo / SuppliedDr Graham Lau, “the Cosmobiologist”, is an astrobiologist, science communicator, and host of Nasa’s Ask an Astrobiologist. Photo / Supplied

Sarah Marcotte is Nasa STEM Engagement Network lead at JPL, managing the Solar System Ambassadors Programme. Photo / SuppliedSarah Marcotte is Nasa STEM Engagement Network lead at JPL, managing the Solar System Ambassadors Programme. Photo / Supplied