LifeSpongy minerals could explain why Mars gives off methane burps Zeolites – volcanic minerals that easily trap and release gases – could be responsible for the burps of methane that occasionally come from the Red Planet News
EarthColonise Mars as humanity's plan B? It's a dangerous fantasy Scott Kelly's year in space rekindles hope of Mars as humanity's bolthole. Such ambitions are misguided, say Stephen Cave, Lucianne Walkowicz and Huw Price Comment