Chris Lintott, Maggie Aderin-Pocock and Pete Lawrence explore the latest research about Mars, finding out if life could once have thrived there and examining the mysterious force moving boulders across its dusty surface. Guest presenter Mekhi Dhesi talks with James Lambert from Pulsar Fusion about the current propulsion options used for space travel, discussing a possible alternative approach that could reduce travel times and costs, making a mission to Mars, and back again, one step closer
