Fleet of INL-designed Mars hoppers could swiftly explore other worlds
Mars is our next frontier. We'd like to know whether the Red Planet ever hosted its own life forms - and where it might be able to host human explorers. The twin Mars rovers Spirit and Opportunity have outlasted their planned three-month lifetime and given us our closest look yet at the Martian surface. But the solar-powered rovers have covered only 21 miles of Martian terrain in their combined 11 years of operation, leaving most of the surface unexplored. Read more
Mars 'hopper' may run on nuclear decay and Martian CO2
Nuclear decay-driven machines could gather gases from the atmosphere of Mars, giving future robotic missions leaps of a kilometre, researchers say. A design concept in Proceedings of the Royal Society A outlines an approach to compress CO2 and liquefy it. The liquid would then be heated much as in a standard rocket, expanding violently into a gas to propel exploratory craft great distances. The authors suggest this is a better strategy to see more of the Red Planet. Read more