A 'design idea' that has more merit than just Rovers.
Materials and Engineering that actually lasts longer than their perscribed use. Nice.
Of course the 'weather' on Mars is kinder to anything built on Earth. So long as they don't need 'shade' that is.
..."These rovers are incredibly resilient considering the extreme environment the hardware experiences every day," said John Callas, project manager for Spirit and Opportunity at Nasa's Jet Propulsion laboratory in Pasadena, California.
"We realise that a major rover component on either vehicle could fail at any time and end a mission with no advance notice, but on the other hand, we could accomplish the equivalent duration of four more prime missions on each rover in the year ahead."...
"We realise that a major rover component on either vehicle could fail at any time and end a mission with no advance notice, but on the other hand, we could accomplish the equivalent duration of four more prime missions on each rover in the year ahead."...
